Unreal Engine Issues
Unreal Engine Issues
Crash Duplicating an empty AtlasRow material node
UE - Rendering - Architecture - Materials - Nov 29, 2023This isn't a hard crash, but a "verify(...)" from MaterialExpressions.cpp, line 559. ...
Deadlock in UAnimationSequencerDataModel::Evaluate where FScopeLock Lock(&EvaluationLock) blocks execution indefinitely
UE - Anim - Nov 4, 2025When both the Sequencer Editor and an Animation Curve Editor are open for the same animation asset, the editor freezes completely upon editing the curve. Analysis indicates that the freeze is caus ...
Crash occur when loading AInstancedPlacementPartitionActor
UE - Editor - Workflow Systems - May 17, 2022Crashes when loading an actor that inherits from AInstancedPlacementPartitionActor. There is a serialization size mismatch. ...
Exporting Mannequin to Blender then Re-importing to UE4 Incorrectly Rotates Animations by 90 Degrees
OLD - Anim - Jun 16, 2015Exporting the UE4 Mannequin to Blender then re-importing to UE4 breaks the animations, causing them to reimport rotated 90 degrees ...
Crash while drag and drop 'Roll Holder L6Y' asset on viewport
TM - Core - Jan 22, 2025“Receives Decals” is not respected on Procedural Mesh Component
UE - Graphics Features - Oct 14, 2022(Enduring Games) I investigated it and found that the following primitive data flag test in BasePassPixelShader.usf fails: (GetPrimitiveData(MaterialParameters).Flags & PRIMITIVE_SCENE_DATA_FLAG_DE ...
Engine Crashes When Trying to Add an Entry to a TMap in a Nested Struct That is an Element of an Array
Tools - Oct 3, 2019When trying to add an entry to a TMap in a nested struct that is an element of an array the engine crashes. This doesn't happen if it is not an array of the nested struct. Attached are .h and .cpp ...
Crash editor when raytracing is enabled and enter kanji characters into TextRenderActor
UE - Graphics Features - Ray Tracing - Apr 25, 2024The editor crashes when entering Kanji characters into TextRenderActor with raytrace enabled. This does not happen with English text. ...
Walking into some destructibles crashes the editor
UE - Simulation - Physics - Destruction - Aug 20, 2015Submitted by a licensee on UDN. I verified it and have attached the test level that he provided. In the test map. some boxes fall and break. Walking straight into the boxes causes the editor to cra ...
Toggling a Spline component from an open/closed loop through bp's isn't reflected
Tools - Jan 19, 2015Toggling a Spline component from an open/closed loop through bp's isn't reflected ...