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Autodesk Maya

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Download Autodesk Maya 2018.4

Autodesk Maya

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Autodesk Maya 2018.4

- Blendshape: Weights display does not update when changing targets
- Crashes or freezes with Bake Deformer
- Cycle errors with rig
- Eye Shader with animated textures does not update in Parallel EM
- Graph Editor: Crash when taking a snapshot of quaternion curves if buffer curves are shown
- Joint manipulators are offset in viewport after unparenting from joint chain
- Maya 2018 fails to re-evaluate basic DG nodes in some cases
- MFnMesh.getPoints(kWorld) is slow in Maya 2018 with non-default context
- Painting blend shape weights fails if other paint tools have been used
- Parent constraining IK Wrist effector to IK Wrist effector snaps when scrubbing timeline in Parallel EM
- Performance: Crash with fat connections during playback
- Performance: Face rig has visual artifact with GPU blend shape
- Performance: GPU Override: Selecting and translating controllers causes changes to character's position
- Performance: Hidden object slows down Maya playback in VP2 with invisibility evaluator enabled
- Performance: Object instances explode during playback in Parallel Evaluation
- Performance: Vp2ParallelEvaluationTask takes longer after 2017.5
- ProxyAttribute: Technical documentation examples still use "ref" flag
- Rigging: Incorrect evaluation of driven object rotation
- Twist attribute not updating on wire
- VP2 update not working when animated visibility changes

Foundation:
- Crash on file save to MayaAscii when scene contains large string attribute
- Alembic 1.7.5 update introduces library name conflicts
- Alembic cache paths saved in Maya 2018.3 cannot be remapped
- Assembly Reference Node can not delete custom attribute
- Changing Lambert color on slider is not printing/undoing the changes
- Crash on startup when encountering OpenCL initialization errors
- Dragging slider crashes or hangs Maya when Undo is disabled
- Duplication of certain object names results in large suffixes and name clash errors
- Error message when switching cameras with the same name
- FBX: Normal is incorrect after scene is saved and reopened
- File Save crash with versioned reference file extension
- Idle scriptJob causing Maya to run at 100% of CPU even after killed
- Manipulating input to layeredTexture fails to update in Viewport
- Maya crash when running cmds.ls(".", recursive = True)
- MGlobal::executePythonCommand called from multiple threads can lead to crash
- Namespaces can be left in a read-only state after reference operation
- Ordered selection during SelectionChanged callback is incorrect
- Pressing certain hotkeys causes hotkeys to no longer work
- PySide: Accessing event.source() inside the dragEnterEvent() crashes Maya
- Python-Mel intercommunication: Evaluation crashes Maya
- Referenced scene will override master scene meta data
- Renaming attribute with Edit Attribute Window does not get saved to file
- Saving a scene file over a network with a large number of nested file references is slow
- Saving referenced exported file with custom extension crashes Maya 2018.3

MASH
- MASH not checking for non-GUI modes in all places
- Crash when command line batch rendering scene with referenced MASH in it

Modeling:
- Crash loading scenes with Pose Interpolators that have no drivers
- Crash when running polySplitVertex and polyMergeVertex
- Crash using Multi-Cut on non-symmetrical objects while symmetry is enabled
- Duplicated LOD groups should automatically connect to the perspective camera
- Duplicating Maya LOD Groups adds unexpected attributes
- Invert Selection no longer works for objects in groups
- Latency when sculpting on meshes using Smooth Mesh Preview
- Merge Tool breaks Tangents/BiNormals on model
- New faces created by Quad Draw don't show in viewport when using Isolate Select
- RMB menu Paint > Sculpt opens legacy Sculpt Geometry tool
- Split Mesh with Projected Curve is no longer working
- UV Distortion Shader no longer supports multiple object selection

Rendering:
- "Custom" collection filter grabs all node types until/unless you enter a valid expression
- "Export Scene Render Settings/AOVs" JSON files lack formatting (difficult to read or compare them)
- animation runs 2x slower if objects are excluded from Render Layers compared to hiding them
- Can't enter layer if overridden Render Settings node is missing
- Crash when undoing Render Setup override creation on referenced node
- Error thrown when overriding a node shared between sets
- imagePlane is blank in viewport on scene load if imageName has a Render Setup override in a visible layer
- JSON import fails with no warning if Render Settings collections point to missing plug-in nodes
- Lights not added to visible layer if "Enable untitled collections" preference is disabled and "Include all lights in each render layer" preference is enabled
- Maya freezes for a while creating thumbnails when selecting large image files in file browser
- No warning when using improper choices for shader overrides
- OCIO: "Scene Not Saved" confirmation occurs when launching Maya from command line, disrupting automatic processes
- Playback is not faster if collections containing animation are disabled
- Render Setup "Export Scene AOVs" no longer outputs override values to the JSON file. Use File > Export Visible Layer AOVs instead.
- Render Setup: Defunct render layers coming in on File: Import when Use Namespaces is set to Off or namespace is deleted
- Unable to set layer visible after deleting collection that shares nodes with separate collection that was created using an expression
- When referencing/importing Render Setup scenes, masterLayer objects are visible but layer overrides are active
- colorEditor command does not respect rgb flag
- Custom icons get renamed if they cannot be located
- Dockable Outliner becomes blank after changing viewport panel to outline panel using hotbox
- Marking menu gets stuck when Alt is pressed while displaying the marking menu
- OS native file dialog not working when reconnecting or replacing references on Mac OS X
- Pressing Shift + M does not hide the Outliner top menu
- Syntax error printed in Python script editor

Viewport:
- Consolidate World breaks geometry override with custom resource handles
- Crash when applying PSD file as color to shader
- Crash when selecting node with custom resource handles with consolidate world on
- Crash when switching to component mode on skinned characters. Can't paint weights.
- Curve Point is not displayed by Drop off locator of Wire deformer
- Having the UV Editor open causes display corruption on meshes with 2 UV sets and Colorset
- Invalid selection for MPxDrawOverride implementations using MPxDrawOverride::userSelect
- layeredTexture not updating correctly in the viewport
- Local rotation axis doesn't draw when far from the origin
- Material renaming breaks updates between attributes and the viewport.
- Memory usage keeps increasing and CPU overuse if UV editor is open and one texture is displayed
- Mesh Corruption in VP2
- MFrameContext::kExcludeHUD should exclude film gate, etc. camera/film related properties
- MPxSubSceneOverride selection issues - depth order/instance selection
- Point light depth map shadows don't obey light depth range attributes
- Selecting bullet constraint/rigidbody/softbody/solver fails
- Soft select fails to draw properly with 1 degree curves in Viewport 2.0
- Texture display breaks on VP2
- translateFrame not updating in the viewport
- TX image plug-in not being used by VP2 image loader
- UV Editor has 100% GPU consumption with Shaded or Distortion view
- Viewport Corruption with Default Material enabled
- VP2 Component Selection for MPxDrawOverride::refineSelectionPath()
- VP2 Native Selection: customizable HW selection support for plugin render items (MRenderItem)
- VP2: NURBS high precision not working
- VP2: NURBS precision issues causing surfaces to disappear

XGen:
- Crash with XGen and missing reference/reference edits


Autodesk Maya 2018.3
- Keyed Conditional Shader Network Invalidates EM (every frame)
- Image sequence does not update in Viewport 2.0 (VP2) with Eval Mode set to Serial or Parallel
- Rigging: Proximity visibility for controllers doesn't work
- Delete history on parented combined nodes deletes all hierarchy
- Performance: Maya performance with 2 blendShape nodes
- Performance: EM constantly reset itself from ready to rebuilding with this scene
- Performance: Camera animation not working with invisibility evaluator enabled
- Performance: Unkeyed parent joints of animated child joints does not update bone draw
- Performance: Maya freezes in EMP Mode in Maya 2018.2
- Performance: Deformed mesh not deforming with isolate selected (Invisibility evaluator on)
- Performance: skinCluster does not evaluate in some scenarios
- Constraints: Parent target offsets are not being saved
- Parallel Evaluation Mode changes custom node behavior
- HIK: Rig moves when attempting to set pivot on an auxiliary
- Lattice wont compute when 3+ live blendShape targets are animated
- Playblasting offscreen in legacy viewport with modern Graph Editor results in fatal error
- Inconsistent Lattice Behavior
- After 2018 remove vertex from ffd1Set for Lattice Deformer is not updated on VP2
- Correctness: CharacterSet: Animation breaks in Parallel mode
- Crash when auto-keyframing camera movements
- Camera with Expressions Changes Namespace when in Parallel EM
- BakeDeformer: Errors with multiple nodes with the same name
- Hidden bones are not updating properly while in Parallel EM
- Profiler: Search is broken on Linux
- TcameraShape is triggering evaluation in dirty propagation
- MotionTrail: drawFramesBefore/drawFramesAfter displays only 1 frame
- Slowness due to controllers when invisibility evaluator is enabled
- Joint orientation is changed when unparenting orient constraint joint
- Invisibility evaluator not playing well with hidden rig elements
- Isolate Select with the Invisibility Evaluator turned on displays incorrectly
- Crash: proxySwitch of grandchild reference and then new scene
- aliasAttr with an invalid alias name causes a crash
- Polygon Disc Primitive Subdivision Mode options not working
- LODGroups can crash Maya and don't work well with the Channel Box Editor
- Graph Editor: Autoframe doesn't frame time axis

Foundation:
- File > Archive Scene fails if size exceeds 2 GB (requires ZIP64 Extensions)
- Importing files will add nodeGraphEditorInfo nodes but won't show in Node Editor
- Qt: Windows missing PySide2-rcc.exe executable in Maya build
- An error occurs when unload mll in the plug-in manager
- Maya crashes if processing occurs in error within scriptJob
- Python devkit plugin rockingTransform.py doesn't work anymore
- Want to import .wire file with texture and texture placement
- Referenced Alembic, FBX files cannot be read in default pref environment due to missing 'requires' line
- Maya Update 1 breaks qtquick on Windows
- WIRE_ATF export crashes in Maya 2018
- Scene Assembly: Changing namespace of top AR after making an edit does not update Edit Targets
- Crash when clicking on a mesh during File > Open
- Maya LT
- Warning is printed when choosing Lighting/Shading from the main menu
- Error message is printed when creating a camera

MASH:
- Kerning space on Type fonts was not matching original font kerning
- Type styles such as italic and bold were not affecting the font
- Offset on the curveWarp Deformer when the deformed geometry was longer than the attached curve
- MASH Bullet Solver cannot be deleted if it was disconnected from all other nodes
- Distribute node on UV mode should have “Use Face Area” usable
- The Bounding Box on the curve warp deformer could only be scaled up, but not returned to a smaller scale
- Loading the Type plugin at the beginning of a script deletes nodes
- Python node returning improper results when connected to a visibility node
- Optimization: MASH scenes saving unnecessary data and making files larger than necessary
- Performance: Fixed a slowdown on start-up due to Type plugin on windows
- Performance: Type plugin returns multiple errors on start-up in batch mode

Modeling:
- Vertex Normal Edit Tool crashes a lot with isolated/hidden faces
- Target Weld tool always creates construction history
- Mirror node is affected by object pivot transform created after it
- mayapy: exits when the blendShape command tries to display a dialog
- Undo stack seems partially cleared when Maya auto saves while the Multi-Cut tool is active
- Blend Shape Groups are created when scene files containing Blend Shape nodes are imported
- Transfer Vertex Order crashes Maya
- Flat Lighting is no longer used on meshes with UV Distortion shading
- Unfold's Pack option should instead be a "Layout UVs" option
- UV grid snapping doesn't maintain offsets
- Adding many Blend Shape targets crashes Maya on Windows
- File containing specific polyBevel corrupted after importing from 2017 to Update 4
- Sculpt tools not working on instances
- Maya crashes after taking UV snapshot
- Frequent crashes with Vertex Normal Edit Tool

Rendering:
- Mac OS X: /bin/Render command fails with spaces in pathnames
- Render Setup material override fails to cover per-face shading if involved shading groups were deleted (regression from legacy render layer material override)
- Render Sequence options fail to open if cameras have children
- Render Setup breaks if you load a Maya file that went through Export Selection from a visible layer with overrides
- Wrong result when using eye dropper in a color picker that has color management disabled
- 3d paint tool doesn't handle values > 1 properly
- Errors occur on file load due to Arnold attributes that exist without a "requires mtoa plugin" statement
- Unable to render using the *.tga extension on Mac OS X
- Copying/pasting a render layer with isolated collection results in non-isolated subcollections
- Mac: Windows disappear or become unusable after switch from other applications
- Mac: Some hotkeys with Alt modifier don't work any more
- Mac: Launching Preferences window from Hotbox (zones only) crashes Maya
- Wacom gestures allow to move the camera when the scene is destroyed
- File dialog Slow or crash randomly (Switching drives/Changing drives)
- shelfButton -width not working
- Attribute Spreadsheet crashes Maya when attributes contain "FBXASC032"
- Setting the $tmp variable break shelf editor command
- Setting mel variable $i breaks attibute editor
- Blurry cursor when UI is scaled

Viewport:
- Selecting UVs on multiple objects in isolate mode crashes Maya
- MRenderItem::setMatrix not working with OpenGL when using MPxDrawOverride::drawRenderItem
- Crash on File > New if scene contain MASH network and VP2 API call
- Isolate select components for MPxSurfaceShape + MPxDrawOverride
- Isolate select components for MPxSurfaceShape + MPxGeometryOverride
- Mapped Texture in Roughness Attribute (PhongE and Anisotropic shaders) does not display correctly in VP2 in Maya 2018
- Mapped Texture in Cosine Attribute (Phong) does not display correctly in VP2 in Maya 2018.2
- Maya performance decrease after saving referenced rigs with transparency
- psdFileTex node cannot update if the global texture resolution clamp is enabled in VP2
- Unloading and reloading of references messes up transparency in VP2
- Color Management: Applies to MRenderOverride viewport render but not playblast
- Isolate select commands do not seem to be working at all
- VP2 lighting/shadow issues after hitting hardware limitation
- MPxContext::drawFeedback is called in legacy viewport
- Isolate Select of Components in VP2 not working with MPxSurfaceShape
- 16K HDR texture crashes Maya on Mac 10.12.x


Autodesk Maya 2018.2
Animation:
- Error when changing the Time (fps) setting in the Working Units section of Preferences window
- Crash when playing customer file that includes references in several animation sequences
- Invisibility evaluator slow to update when switching Maya views
- Invisibility evaluator not playing properly with hidden rig elements
- Graph Editor: Crash when repeatedly swapping and overwriting buffer curves
- Graph Editor: Crash on selection in outliner when trying to create result curves for read-only attributes
- Graph Editor: Graph Editor Move key tool options gives you move tool options instead
- HIK: Crash when playing back HIK rig if root is an invalid node
- Free image planes are slower than camera image planes in the legacy viewport
- Orient constraint values not consistent
- Removing components from deformer breaks connections to input/output geometry
- Parallel evaluation causing invalid memory
- Motion Trails: Cannot move motion trail keys for certain scenes
- Maya 2018 reports curveInfo cycle where it doesn't seem present
- Time Editor: Audio still plays back after deleting a split group section
- Right-clicking a lattice deformer, and then selecting Navigate Graph from the marking menu crashes Maya
- Performance: GPU Override causes Maya to hang when playing back scenes with file references

Core Architecture:
- Can't open .mb files larger than 2GB
- no kLast on MPxNode::SchedulingType enum
- Performance : FileTranslator plug-in not evaluating correctly in batch mode
- Maya does not exit when spawned process is still running
- Game Exporter crashes on export with specific settings
- Baking on export to FBX not working on animation curve tangents
- Maya can't find files if file path has a space at the end of the file name
- optionvar in syncPreferencesOptVar/.mel is set to "off" instead of off
- Crash when importing Alembic cache
- Change of enum for kExcludePluginShapes beyond 32 bit int breaks plugins
- Crash with FBX Export when Triangulate and Tangents and Binormals enabled in Geometry options

Modeling:
- Crash when undoing everything on blendshape targets with sculpting tools
- Maya crashes when enabling/disabling poses in the Pose Editor
- Tweak UV tool causes crash every time
- UV Snapshot does not save properly if path contains a period
- Move Tool manipulator moves in opposite direction when used with a negatively scaled object
- API: MFnMesh.create() in Maya 2018 causing critical error
- Viewing pose interpolators in the Node Editor causes weight values to be incorrect
- Crash when hovering over Pose Interpolator shape output which doesn't have a blendshape
- Modeling Toolkit's custom shelf does not remember if it is collapsed or not

Motion Graphics:
- Time Machine attribute has no effect
- Duplicating input graph breaks Type object
- Duplicate excludes trails
- Network processing when already deactivated
- Potential performance issue when MASH plug-in is loaded
- Type node string disappears when whitespace is included in Python Expression
- Type animation deformer with Render Layer causes an index out of bounds error
- Rendering
- Maya no longer crashes when unloading then reloading references in scenes where Render Setup layers exist
- Script Editor errors no longer occur upon re-opening Maya after it is closed with the Render Settings window open
- Files saved in Maya 2017 and with mtoa loaded no longer break due to removed render global attributes upon scene reloading
- The issue where the viewport will turn black if the user selects File > New and then open the scene again, or if the user opens the Preferences window and then clicks Cancel has been fixed.
- Crash no longer occurs if swatch file path length exceeds 260 characters
- Maya no longer marks the scene as dirty upon File > New in cases where the mtoa plug-in is unloaded

UI:
- Render Setup Property Editor breaks when separating it and changing workspaces
- Workspaces: windows change size on second monitor
- API MayaMixin: Internal C++ object already deleted
- Viewport appears half black on Mac OS when UV Editor docked in main window and collapsed and inactive in it's tab group
- In the Outliner, Display > Assigned Materials does not work properly
- Node Editor Window does not respect Window Manager settings in Linux
- Maya child windows disappear when you minimize them in Linux KDE mode

Viewport:
- Shaders not updating in Viewport 2.0 when toggling between layers on Photoshop PSD file textures
- Shader attached as input to other shaders does not update in Viewport 2.0
- Crash when opening scenes from older version
- Imported reference object with dx11shader and namespace remains on screen after mesh is removed. Maya crashes after removing the dx11shader.
- Using tessellation technique with dx11shader causes memory access violation
- Maya .ma scene files with image planes cause crash when opened in Maya 2018
- GPU memory limit warning repeats on loop with displacement
- API: MPxShaderOverride::updateDG() won't be called if it is assigned to MPxSubSceneOverride via MRenderItem::setShaderFromNode()
- Jittering issue with camera attached locator when the camera is moved away from origin
- Viewport texture size clamp breaks transparency on grayscale maps
- Viewport 2.0: Jittering in image plane when camera is far from origin
- XGen
- XGen plug-ins are not compiling for Maya 2018
- Legacy XGen and XGen Interactive Grooming Expression Editors do not open

Autodesk Maya 2018.1

What's New:
- You can now deploy Maya Batch on the Cloud

What's Fixed:
- The following list contains bug numbers and corresponding descriptions for issues fixed in this release

Animation:
- MAYA-85426 Wire deformer twist no longer causes partial rebind
- MAYA-84912 Decompose Matrix node no longer ignores inputRotateOrder
- MAYA-86017 Graph Editor : You can now manipulate points on a motion trail with the Graph Editor open
- MAYA-84902 GraphEditor : Deleting keyframes from a referenced file no longer causes Maya to crash
- MAYA-85898 Motion Trails : Translating keys on Motion Trails has been made easier
- MAYA-85878 Constraints: Parent constraint’s lock output now works correctly
- MAYA-85516 Constraints : Creating tangents now works correctly
- MAYA-85333 A regression in Python keyframe command since Maya 2017 Update 3 has been fixed
- MAYA-85130 The Deform menu no longer recreates itself each time it is displayed
- MAYA-85065 The Wire deformer's Dropoff distance is now limited correctly in both the Attribute Editor and ChannelBox
- MAYA-84943 Infinity values on curves no longer cause Maya to hang when trying to copy keys
- MAYA-84507 Playback performance improved on scenes with many constraints
- MAYA-84420 Scrubbing timeline in scenes where meshes have no UV assignments no longer causes Maya to crash

Core Architecture:
- MAYA-85332 Paths in sys.path are now added in order
- MAYA-85264 QT Designer included in Maya now launches correctly
- MAYA-84997 Qt 5.6.1 provides ABI compatibility
- MAYA-84167 PySide2 : Widget position no longer top left of display when calling resize from showEvent
- MAYA-83565 Qt5 : QComboBox: Corrected index (string) in activated() signal if QCompleter has different model
- MAYA-81014 Using QtWebEngineWidgets in PySide2 no longer causes instabilities
- MAYA-85327 Referenced fbx file now loads after being moved

Modeling:
- MAYA-85840 Selecting NURBS Curves in Component Mode no longer causes Maya to hang
- MAYA-85767 Boolean operations properly create supporting edges
- MAYA-85641 Changing propagation in Use Constraints Options no longer causes Maya to crash
- MAYA-85490 Sculpting on high valence mesh no longer causes Maya to hang
- MAYA-85478 Sculpting a mesh with Volume Falloff and Topological Symmetry no longer causes Maya to crash
- MAYA-85060 Weld certain vertices using the Target Weld tool is now more consistent
- MAYA-85057 Enabling Quad Draw no longer slows down Maya with certain meshes
- MAYA-85050 UV layout no longer updates to different location when UV is moved or new UV Set is created
- MAYA-85042 Multi-cut Slice is now properly constrained in vertex mode
- MAYA-85048 Softer transition in Vertex Color Transparency between two UV sets using a layered texture

Motion Graphics:
- MAYA-85825 MASH Dynamics : All channels in Channel Random now working
- MAYA-85179 MASH : Fixed a memory leak when playing / scrubbing the Time Slider

Rendering:
- MAYA-85656 / MAYA-85154 Sets now work correctly with Render Setup
- MAYA-84123 The issue where the Color Chooser, when in RGB mode, incorrectly changes the value of an unselected material is now fixed.
- MAYA-70361 Previously, if you choose not to install Arnold for Maya, a warning appears upon starting Maya or starting a new scene, indicating that the Maya Software renderer will be used instead. You can now prevent this message from appearing again by setting the environment variable MAYA_NO_WARNING_FOR_MISSING_DEFAULT_RENDERER=1.
- MAYA-84905 All nodes that have a Color attribute are color managed by default. This includes the file texture node, image plane node, and others. You can disable color management by selecting Raw as the color space, and enabling Ignore Color Space File Rules.

UI:
- MAYA-86189 Hotbox no longer pops briefly at the top left of the monitor in some Windows configurations.
- MAYA-86014 Hotkey Editor : Add to Recent Commands List feature now works correctly.
- MAYA-85889 Removed usage of deprecated Qt function: QPixmap::grabWindow
- MAYA-85877 Can change the active viewport by clicking the menubar in the Viewport.
- MAYA-85781 Crash no longer deletes custom hotkeys in Prefs / Hotkeys
- MAYA-85766 Floating Attribute Editor or Channel Box appears in front of other floating windows when using assigned « open windows » hotkeys.
- MAYA-85622 Maya now launches in Chinese on simplified Chinese Mac OS 10.12
- MAYA-85473 Floating windows no longer get in the way during a render
- MAYA-85429 Mac : Minimized floating panels no longer appear on top of other apps.
- MAYA-85394 Render View no longer needs forced update after File > Open Scene
- MAYA-85217 MAYA 2017 shelf icons are drawn at consistent sizes
- MAYA-85135 The '%' character no longer breaks Shelf Popup Menu Item Python commands
- MAYA-85068 Hotbox works on secondary display port Mac OS 10.9 with Mission Control Separate Spaces
- MAYA-84998 Reduced lag in modeling operation / viewport interactions (Hypershade/UV Editor performance)
- MAYA-74818 Workspaces : Blue Dock Line no longer gets left behind after docking
- MAYA-86034 Fixed occasional crash into OGS selection code
- MAYA-85663 MPxDrawOverride::excludedFromPostEffects() no longer affected by Depth of Field in Viewport 2.0.
- MAYA-85202 Change Opacity of DirectX11 shader with Transparency Algorithm=Weighted Average no longer causes Maya to crash
 
Limitations and notes:
- The following section describes limitations and workarounds (where applicable) about this release.
- MAYA-30309 OSX 10.9: Hotbox and marking menus will not work on second screen of a dual screen setup
- Workaround: Under System preferences > Mission Control > [ ], uncheck the "Displays have separate spaces" option. This will bring the OSX work spaces behavior back to the way it was before 10.9.
- MAYA-85275 Since Maya 2018, the Quicktime codecs have been relocated.
- Workaround: If you are not launching with Maya's default scripts, you will need to set the following environment variable for Maya to find the codecs: LIBQUICKTIME_PLUGIN_DIR "$MAYA_LOCATION/lib/libquicktime".
- MAYA-86221

On Windows, the MAYA_ENABLE_WEBENGINE environment variable needs to be set in order to use QtWebEngineWidgets module. Otherwise Maya could hang. Maya might crash or experience corruption when QWebEngineView objects are deleted, for example in the following script:
- from PySide2.QtWebEngineWidgets import QWebEngineView
- widget = QWebEngineView
- widget.setUrl
- widget.show
- widget = QWebEngineView
- widget.setUrl
- widget.show

Workaround: Create separate QWebEngineView objects, like so:
- from PySide2.QtWebEngineWidgets import QWebEngineView
- widget = QWebEngineView
- widget.setUrl
- widget.show
- widget2 = QWebEngineView
- widget2.setUrl
- widget2.show
- MAYA-81014 The QtWebEngine module might cause instabilities on all platforms in some scenarios and is not officially supported yet.
- Workaround: On Windows, if you're experimenting crashes, try setting the MAYA_ENABLE_WEBENGINE environment variable to a non-zero value
- MAYA-86150 Geometry may disappear from the viewport when X-Ray display mode is used in conjunction with screen space ambient occlusion, and an aiSkyDomeLight mapped to an image is used to light your environment.
- Workaround: When using an aiSkyDomeLight in your scene, avoid using X-Ray mode with screen space ambient occlusion.
- MAYA-86209 Geometry may disappear from the viewport when X-Ray display mode is used in conjunction with the Alpha Cut Transparency Algorithm.
- Workaround: Do not use X-Ray display mode and Alpha Cut mode at the same time. Alternatively, you can use either the Depth Peeling or Object Sorting transparency methods. Depth Peeling provides better quality for scenes with lots of overlapping transparent geometry, but may be slow. Object Sorting is faster than depth peeling, but may appear incorrect when there are many layers of geometry.

Autodesk Maya 2018

What's Fixed:
Animation:
- Anim Layer: Crash when merging layers
- Anim Layer: Enum attribute keying incorrect on layers
- Anim Layer: findCurveForPlug flag broken in Python
- Anim Layer: Merging layers with non-keyable attributes causes crash
- Anim Layer: Rotating a controller on a rig that has animation layers can cause Maya to freeze
- Animating the mirror gizmo can freeze Maya
- AnimLayer: Merge to bottom selected layer loses translation keys
- API : TdagObject.attr has a limit of 260 attributes that can be added on a node
- ATOM: Export Animation option window does not open
- ATOM: Export stops working after a tweak export
- ATOM: Exporting keyed attribute on shape node does not export/import correctly
- ATOM: File with one keyframe does not import correctly
- Attempting to offset attributes which are not present in the root node when loading files causes crash
- Attribute spreadsheet stops setting values after a single failure
- Autokey: Soft Select with a Lattice doesn't work
- Autokey: Undo hangs Maya for long periods
- Bifrost render will crash with parallel evaluation when texture deformer has layered texture as bifrost input
- Blend Shape : Maya becomes unresponsive when freezing blendshape
- Blend Shape: GPU/CPU evaluation slowdown
- Calling executeInMainThreadWithResult from two different threads causes Maya to hang
- Camera position doesn't update in the viewport when hidden
- Cannot bake animation on curves with no keys
- Cannot find procedure buidMuscleMenu
- Channel Box speed settings removed
- Component Editor: Cannot select a column by clicking on the name
- Component Editor: Clicking on a joint name in Smooth Skins tab will cause joint columns to disappear
- Component Editor: Slider is disabled with single component list in Smooth Skins tab
- Component Editor: Using slider in Smooth Skins tab does not update all values
- Constraints: Aim constraint with maintain offset not working when rotation order changed from xyz
- Constraints: Blend attribute left when target is removed, only happens after loading constraint scene data
- Custom MPxTransform node are not rendered properly
- Deform menu not updating correctly for Curve Warp plugin
- Deprecate MFnKeyframeDeltaScale and MFn::kKeyframeDeltaScale
- Evaluation graph is incorrect with custom rig node.
- Evaluation graph is invalidated when editing an object with a static curve
- FBX: Export custom attribute animation not working
- ameCache node not updating with keyframe changes
- GPU override intermittently unsupported
- GPU Override: User-defined streams don't support deformers requiring additional mesh information
- Graph Editor : Color settings lack desired values
- Graph Editor : Hotkey I no longer inserting keys
- Graph Editor : Non-weighted tangent mouse movement behavior
- Graph Editor: AnimCurve allotted only two keys in modern graph editor
- Graph Editor: Auto frame doesn't always work in Classic UI
- Graph Editor: Buffer curve changes appearance after keys are deleted or added
- Graph Editor: Crash when deleting and importing ATOM animation
- Graph Editor: Crash when selecting controllers if graph editor is opened
- Graph Editor: Crash when using K hotkey to scrub the timeline
- Graph Editor: Curves for unselected nodes are shown in the graph view
- Graph Editor: Difficult to edit many key tangents at once
- Graph Editor: Improve baking cycle animation with different tangent weight
- Graph Editor: Key not visible if set at frame 0
- Graph Editor: Keyframes scale in unexpected ways
- Graph Editor: Need visual cue to identify locked tangent lengths
- Graph Editor: Quaternion interpolation breaks after editing
- Graph Editor: Region/Lattice tools don't always show the correct bounding box
- Graph Editor: Scale keys corrupt in normalized view
- Graph Editor: Selecting BaseAnimation layer clears the Graph Editor
- Graph Editor: Selecting animation layers does not update the Graph Editor properly
- Graph Editor: Should not auto-frame when moving a key with Shift + LMB
- Graph Editor: Slow performance on Mac when setting initial keys for a new file
- Graph Editor: Slow playback because of updating
- Graph Editor: Unify tangents changes tangent length
- Graph Editor: Value numbers are not aligned with their corresponding line
- Graph Editor: Viewport can lock after closing active Graph Editor
- Graph Editor: Nearest picked key tool is not respecting the constrained y-axis drag
- Graph Editor: Can't copy animation from one object to another when it has no curves yet
- Graphviz error if starting Maya from Windows command prompt
- Grease Pencil : Does not write out a valid texture file name if camera has a namespace
- Grease Pencil : Frames are exported in the wrong order if you draw on previously imported frames
- IK: Joint damping doesn't work
- IK: Solver doesn't update correctly when joint scales are scaled
- IK: Solver stops evaluating correctly when it's too far from the origin
- Incomplete CV curves cause instability when used in wrap deformer
- Inconsistent attribute keying in the channel box between assets and normal object
- Incorrect translation on non-uniformly scaled objects
- Joint drawStyle attribute is not connectable
- jointDisplayScale in MEL/Python documentation incorrectly listed as Not Editable
- Legacy Viewport: Enabling draw overrides on ikHandles causes instability
- Maintain offset not working for Point on Poly constraint
- Material assignment lost on duplicate as copy
- Maya crashes upon removing reference
- Maya hangs when baking
- Maya hangs when selecting NURBS Curves in component mode
- Maya temporarily hangs when selecting large scene file over the network
- MFnSkinCluster.getWeights() fails for NULL object in Python 2.0 API
- Move Skinned Joints Tool: Orient Axis drop-down list not working
- MPxGeometryData not updating correctly with deformer caching
- Nvidia driver can cause instability after numerous rig manipulations
- Object in a Character Set has rotation errors when value exceeds 180
- Performance : Discrete rotate fails to work in EM mode
- Performance: BlendShapes are not evaluted in parallel
- Performance: Changing weight of a Parent Constraint with utility nodes causes EG rebuild
- Performance: Dynamically created attributes with several key frames are not displayed properly
- Performance: EM node is perpetually marking the time1.outTime attribute dirty
- Performance: Evaluation graph is invalidated too often while animating
- Performance: Evaluation graph shouldn't be invalidated for state change of prepopulated animation curve
- Performance: Evaluation graph shouldn't be invalidated when prepopulated curve is being disconnected from time
- Performance: Framerate drops with Isolate view selected on some scenes
- Performance: Frozen node causing geometry to disappear during playback
- Performance: mayapy cacheFile crashes when Parallel is enabled
- Performance: Multiple NURBS deformed by same lattice are not performed in parallel
- Performance: Non start-frame animated blendShape has persistence problems
- Performance: Remove synchronization between background evaluation and rendering
- Performance: Scene crashes during playback when toggling motion blur on and off
- Performance: Setting keys on control with animLayers invalidates evaluation graph
- Performance: Slow HIK performance vs. MotionBuilder
- Playblast: Only 1 audio file is recorded when playblasting with several audio files in Trax
- Playblast: Using .mov format results in green line artefact at bottom of frame on Linux
- Profiler: Grabbing tag data from custom deformers causes crash
- Profiler: Search should support regular expressions
- Profiler: Total frame time is inaccurate
- Proxy Attribute: Break connection in the Channel Box breaks proxy connections
- Python: deformer -rm -g does not actually remove the deformer
- Registering a callback with setPlugLockQueryCallback can cause instability in playback
- Rotating groups of causes geometry to jump
- Selecting a constrained channel in the channel box can cause Maya to crash
- Selecting root node from rig causes a delay if Attribute Editor is open
- Sequencer: Failure to split shot due to camera name
- Sequencer: Removing empty sequencer track changes shot mute state
- Sequencer: Removing empty sequencer track changes shot mute state
- Sequencer: Scrubbing timeline before opening soundtrack results in incorrect audio playback
- Set Driven Key: Non-keyable attributes do not appear in the driver list
- Skinning: Error occurs when using optimize scene size after Geodesic Voxel
- Skinning: skinCluster's nodeState attribute controlled by connections from utility nodes fails to evaluate correctly when scene opened
- Skinning: Substitute Geometry is unloading added weight values and can cause a crash
- Slow computing of IK handle if applied on joints with segmentScaleCompensate disabled
- Substitute Geometry leaves an undeletable transform node
- The -areCurvesSelected flag is not recognized in the animCurveEditor command
- Time Code: Timeline frames displayed using exponential notation at 10 hours
- Time Editor: Bake to Scene and Delete does not work properly with non-centimeter unit
- Time Editor: Baked animation clips don't get applied when importing a reference
- Time Editor: Baking should only resample in cases where it is needed
- Time Editor: Blending clips with rotation on relocator gives undesirable results
- Time Editor: Importing FBX animation clip fails when using OS native dialog
- Time Editor: Match Relocators not rotating correct root objects
- Time Editor: Playblasting when path to audio file is wrong causes Maya to crash
- Time Editor: Relocators failing to offset rig properly
- Time Editor: Specific callbacks never get called
- Time Editor: Splitting a clip makes the second half empty
- Time Editor: UI render performance is slow
- Time Precision: FBX plugin bakes using Maya current frame rate
- Time Precision: Improve keyframe precision on higher frames
- Time unit conversion nodes correction Maya 2015 to Maya 2017
- Timed Context and Normal Context give different results
- View Selected no longer yields improved playback performance
- Viewport does not refresh a constrained object's visual transformation when its parent is rotated
- Visibility of shape driven by external attribute not refreshing properly when ascii files are referenced/ imported
- Weight maps on cMuscle don‘t update via connection or setAttr
- Wrap: Exclusive Bind altering rest shape of deformed object
- Meshes disappearing or flickering in Viewport on playback. This is related to an NVidia driver issue.

API and Scripting:
- .Net Manipulator will crash Maya when continuously switching objects in Hypergraph Hierarchy
- Crash occurs when assigning a large string to a plug using Python
- Deleting a key does not change interpolation for the following keys
- devkit plug-in xmplImageFormat needs to be updated
- Devkit XCode projects use the wrong linker flags for initializePlugin/uninitializePlugin
- The -script flag in the python condition command requires a MEL function to work
- Group undo is not working
- Improve documentation for MPxSelectionContext::setAllowPreSelectHilight()
- MFnArrayAttrsData::checkArrayExist() cannot be used from Python API
- MFnAttribute::setWorldSpace() does not appear to work
- MPxGeometryOverride doesn't provide frame context
- Problem with docking and resizing of C# controls
- Python Playblast of constraint on custom python transform nodes causes Maya to hang
- Python root logging level is set to DEBUG
- Several PySide2 operator overloads will modify and return a reference of the original object

Bifrost:
- bifrostVis plug-in crashes mayapy on a workstation without a graphics card
- Command line rendering does runup up to specified start frame with scenes containing simulation (including Bifrost)
- Foam particles sticking on collision
- Guided Sim is generating cells
- Motion Field Friction set to non-zero value causes Maya to hang
- Motion Field: Geometry motion field affects all particles and not just the ones within the geo
- Motion Field: Mesh is ignored once boundary is enabled

Color Management:
- Color management causing automatic decimation to hang
- Duplicated file nodes are not color managed.
- Network path not supported in synColorConfig.xml
- Red grid appears in VP2.0 when using OCIO cofing file
- Viewport2.0+OpenGL - Core Profile (Compatibility): adding "_" to name on config.ocio causes problem with texture display

Core Architecture:
- Aif audio doesn't work in Playblasts on Mac
- ChannelBox_ClearSelectionOnObjectSelectionChange with MEL optionVar -iv causes Maya to crash
- Connected attributes get out of sync in the Channel Box
- Curve Warp 'Twist Curve' Attribute is corrupted on scene load if Position and Value of Point 0 on the curve are set to 0
- Deleting certain groups in scene causes Maya to crash
- dirmap command fails to map referenced Alembic file path from Windows path to Linux path
- Documentation Update: OpenMP/TBB spin wait time (kmp_set_blocktime)
- Loading HSM FBX file exported from Maya 2015 causes Maya to crash
- Maya signal handler should not consider SIGTERM a crash
- mayapy crashes when quitting even after uninitialize() is called
- MObjectHandle constructor is not thread-safe
- MProfilingScope does not work in Python API 1.0
- MUiMessage.ThreedViewPreRenderMsg callback function causes Maya to crash
- Multi byte string are un-readable with sys.stderr in Python script editor
- Occasionally, starting Maya on OSX causes a crash
- ogsRender command breaks mayapy on close
- Ordered selection during SelectionChanged callback is incorrect
- Playblast does not throw an error if some frames fail to render
- Profiler: The search feature doesn't work
- Render crash on Linux using remote render (CIP issue)
- Some plug-ins to fail to load despite "Auto-load" being enabled in the Plug-in Manager
- Suppressing the Error dialog box option is not recognized after Maya restart
- Tooltip display causes Maya to crash if current working directory is a network path
- Undo command with nodes that were duplicated with input connections leaves nodes behind

Data Management:
- Certain Planar Trims fail when importing ATF_IGES in Maya
- Maya 2018 binary files cannot be opened by earlier versions
- Update ATF version of TBB to match Maya's

Dynamics:
- Per-particle positions do not update on nCached nParticles
- nHair: Follicle axis flips
- nParticles: nParticle does not die when lifespanPP = 0

File I/O:
- ASCII files (.ma) take too long to save across the network
- Delete Namespace not working the same in 2016.5
- FBX: Camera Aperture Keys not saved when exporting as FBX
- FBX: Camera Focus Distance lost
- FBX: Games FBX files take very long to open
- FBX: Importing a file that contains a reference to an FBX file fails to correctly initialise the reference
- FBX: Re-opening a scene with an Absolute/Project path fails
- FBX: Saving a re-opening scene causes FBX references to fail to load
- Importing character file causes crash
- Layer Manager gets turned into a reference together with the exported layer when exporting layer as reference
- Maya crashes when deleting a reference if something in its hierarchy is selected
- Maya crashes when saving file references in some scenarios
- Maya freezes when loading a reference containing an expression node
- mayapy and standalone applications crash when loading scene files which have lockFile flag set to true
- Namespace on blend target causes crash on import
- Objects lose material when referenced multiple times.
- Read-only permission of file on disk can corrupt scene state during Save as operation
- Removing refEdits takes a very long time
- Scene crashes on save due to createNode reference dependencies left behind in the scene
- Selecting channels on multiple objects can cause Maya to crash
- Set members not updated on referenced model
- Set members not updated on referenced model animated with alembic
- Set project doesn't update properly when project scene file is currently open
- Setting MCommandMessage callbacks in Python crashes Maya
- Severe slowness when unloading file references
- Shape Editor Manager causes crash when importing from one scene into another
- Undo command not working in the Script Editor
- Updating reference file doesn't correctly update mesh per-face shader assignments
- Visibility setting of rig controllers lost on import or reference
- Wrong reference node is taken into consideration when a name is shared but exist in different directories

HIK:
- Baking to control rig is inconsistent with rotation interpolation
- Controls don't display correctly for custom rig
- Deleting a target object also deletes the constrained object
- Delete by Type > Asset causes crash in hikeffector2state.cxx
- Joints can become NAN when some limits are set
- Locking a character definition modifies bind pose, which causes errors for PhysX clothed meshes
- HIK: Merge animLayer with "Delete Baked (Merged) Layers" doesn't work with HIK rig animation
- Using Auto-key with muted HIK control causes Maya to crash

Infrastructure:
- Better way to handle crash file and report
- connectAttr fails when a warning is issued

Modeling:
- "fitAllPanels -selected" frames all objects in the scene instead of the selected one
- "Grow/Shrink Along Loop" stops working after growing UV selections
- "Tweak UV Tool" does not work when "Preselection Highlight" is off
- .mb file poly mesh from corruption from Maya2016 sp6 to Maya2016 ext2
- Absolute U and V nudge buttons have the wrong tooltips
- Adding a target to a second blend shape node when the first has driven targets causes an error
- Adding geometry with UVs to a templated layer preserves UV Shell display in UV Editor
- Allow marquee selection of a single component to start a partial loop/ring selection
- Alpha channel displays white in UV Editor when editing 2d texture placement attributes
- API MFnMesh::setInvisibleFaces - crash
- Applying bevel to an edge changes UVs in unexpected ways
- Assign Invisible Faces crashes application
- Attribute Transfer of Color Sets does not work correctly in world sample space
- Backspace/Delete name panel doesn’t have enough space for Japanese
- Bevel: Bevel without chamfering results in some edges not being parallel
- Bevel: Add segments to edge causes Maya to crash
- Bevel: Double faces created during bevel operation
- Bevel: Overlapping faces created on decagon n-gons with chamfer OFF and Force parallel ON
- Bevel: Very slow performance
- Blend Shape: warning popup needs to be suppressed
- Blend Shape names of shapes created through duplication will export empty names in FBX
- Booleans: Connecting edges produced on large objects where they're not necessary
- Booleans: Redundant vertices generated after running Boolean operations
- Bridge Tool fails when symmetry is on
- Cannot display a related texture when select UV Set from the menu
- Cannot import DWG or DXF files to Maya
- Cannot select UV Face with legacy viewport style selection in VP2
- Can't rename UV set when applying deformer / smoothbind to a poly without history
- Channel Box speed option doesn't work with Ctrl or Alt hotkeys
- Circularize: Does not create a circle with non uniform scaling
- Circularize: Doesn't handle 5+ sided polys well when divisions are added
- Circularize: Not enough attributes showing up in the In-View Editor
- Circularize: Problem with align to surface
- Color correction affects the UV Editor when no image is loaded
- Combine/Separate/Extract/Duplicate destroy Material assignments
- Component mode axis translation wrong when parent is rotated
- Component Scale transform inconsistent when using the hotkey
- Connect Tool on concave ngon causes Maya to hang
- Convert To Edge/Vertex Perimeter doesn't select edges/vertices on the border
- Convert displacement to polygon causes Maya to crash
- Convert NURBS > Polygon with [x] Attach Meshes causes Maya to freeze
- Convert subdivs to nurbs in Maya 2017 is slow
- Copied UV set is corrupted and leads to a crash
- Copied UV set is deleted if renamed to match a previously deleted one
- Converting NURBS to Polygons when Use chord height ratio is enabled causes Maya to crash
- Creating a MMeshIsectAccelParams in Python and using it for intersection causes Maya to crash
- Curve projection on polyMesh yields fragmented curve
- Default size for UV Snapshot is too low
- Degenerate NURBS surface causes Maya to crash
- Deleting instances causes Maya to crash
- Display tile lines causes slowdown in the UV Editor
- Duplicate LOD group error
- DWG / DXF import/ Export is missing
- Edge Sets are broken by Extract
- Editing Blend Shape targets with Sculpt tools stores all vertex positions instead of just the deltas
- Export Selected exports all objects with blendshapes
- Extract Faces command breaks Vertex Color and sets
- Extrude Offset gives different result in 2017 vs 2016
- Extrude option window broken on Mac
- Extruding edges on a mesh adds shader assignments to unrelated mesh faces
- Files from Maya Ext 1 not opening correctly in Maya Ext 2
- fitBspline should keep the input curve's parameter range
- getUvShellsIds not returning the right IDs array
- Icons dropped from Maya's main UI into UV Editor custom shelf aren't automatically resized
- Ignore Selection Priority causes problems with selection mode
- In Isolate Select mode, some mesh faces added by a poly-modifier are not drawn
- In-View Message for tumbling orthographic views is misleading
- Isolate Select -> Remove All for reversed mesh causes Maya to crash
- Layout UVs: Pack Together doesn't work
- Manipulator pops to mouse position with Smart Duplicate or Extrude
- Maya crashes when reading scene file with reference edits
- Maya crashes when switching workspaces while the UV Editor is floating
- Maya freezes on UV selection in large file
- Memory leak while using UV Editor with a large data set
- Mesh > Combine results in phantom default uvSet
- Mesh error doesn't include object name
- MFnMesh does not match edge ID assignment when generated with data from another mesh
- MFnMesh::allIntersections() problematic behavior with accelParam
- Mirroring objects produces different results 2016.5 to 2017
- Modelers should be able to use non-joint transforms for transform space blend shape targets
- Modeling Toolkit Bevel/Connect Tool manipulator regressions
- Modeling Toolkit settings don't persist after Maya is closed.
- Move Tool: Component manipulation regression
- Multi-Cut angle snapping fails on non-planar polygons
- Multi-Cut Tool doesn't cut concave (ngon) polygon correctly
- Multi-Cut: Precision problem when slicing while holding the Shift Key
- Multiple UV sets get blown away when using booleans
- Need to support hotkey "g" for Snap, Rotation and Scale buttons of UV Toolkit
- New default behavior for blendShape's deformation order breaks
- New UV Editor Texture menu doesn't list custom hardware shader node textures
- No texture transparency in UV Editor
- Normal Based' UV mapping not available in modelling viewport marking menu
- NURBS Trim with undo / redo causes Maya to crash
- Object center option in Rotate/Scale Tool not working correctly for components
- / MAYA-80467 Object seems to snap when moving using the XZ plane handle
- Objects created in 2016 with UV Unfold applied are corrupted when opened in 2017
- Performance is slow with Smooth Mesh Preview, OpenSubdiv method
- Pivot editing doesn't snap to points or grid intersections in the UV Editor the same way it does while editing the pivot position in the 3D viewport
- Pivot keeps jumping to center when you switch to another tool
- Poly reader causes crash when face indices are out of range
- polyengine, TpolyGeom, trgFaceOrder causes Maya to crash
- polyMirrorFace -direction behaving incorrectly
- polyMirror-node switch automaticly switches mergeMode attribute
- Pose Editor: Incorrect blendshape name on import when no blend shape node is already created
- Pose Interpolator with many poses is slow for parallel EM mode
- Quad Draw: Activating Soft Select causes crash
- Quad Draw: Laggy when meshes have holes
- Quad Draw: not filtering out occluded components for selection/welding
- Quad Draw: Relax on ground plane not working with Z-Up
- Quad Draw: Wrong icon in Shift+RMB marking menu
- Querying a mesh's vrts attribute causes Maya to crash
- Retain Component doesn't work correctly in Pivot mode with multiple objects selected
- Sculpting: "Redo" corrupts the mesh with sculpt tools when the mesh is posed
- Sculpting: Sculpt tools corrupting meshes
- Sculpting: Sculpt tools don't render properly with backface culling
- Sculpting: Slowdown on heavy meshes
- Sculpting: Will sometimes mangle meshes that have pre-existing tweaks
- Selected edges in the UV Editor view are not visible when Texture Borders are showing
- Selecting vertices with mesh Reorder causes Maya to crash
- Selection issue when Shift+dragging to constrain move on axis followed by Shift Extrude
- Selection issue with Drag select after moving component with MMB
- Separated mesh with separate materials results in incorrect materials
- setAttr point tweak prevents custom node object from being duplicated with mesh
- Sets are created and linger after certain Nightshade UV operations are run
- Sew, Cut, Separate UV tools can cause Maya to crash.
- Shaded UVs hide the grid in the UV Editor
- Shaders lose face assignment when duplicating mesh
- Shift-Extrude doesn't work with symmetry
- Show Last Hidden fails after undo Show Last Hidden
- Skinning: Setting vertices on skins programmatically is broken
- Small file crashes on remUnusedVertex & extractFaces
- Snap to Local Rotational Axis doesn't work
- Snap to vertex is slow
- Switching to component mode and making any selection breaks focus via shape selection in object mode
- Switching to Object selection does not release the Move UV Shell Tool
- Tangent and transform space targets don't work correctly with non-uniformly scaled objects
- The keyable state of a mesh's visibility attribute is not saved
- Value obtained from MFnMesh::getTangents is different when the user re-opens the scene
- Thickness generates mangled mesh
- Toggling Isolate Select does not work in UV Editor
- Translating a group of objects causes Maya to hang.
- Trying to bevel an edge that ter


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