Unreal Engine Issues
Unreal Engine Issues
Crash in RecreateClothingActors() when using MasterPoseComponent
UE - Simulation - Physics - Character - Mar 27, 2019As part of RecreateClothingActors(), the master pose component is not checked for a valid mesh and therefore when TransformComponent->GetComponentSpaceTransforms() is indexed into, crashes can occur ...
Blueprints from UE4 with dangling delegate reroute node crashes on UE5 load
UE - Gameplay - Blueprint Compiler - Dec 22, 2023If a project from UE 4.27 or earlier has a blueprint with a reroute node dangling (no outgoing connection) from a Custom Event Node's delegate pin (red), this blueprint will crash when loaded in UE ...
Android build fails with GPU Lightmass plugin enabled
UE - Platform - Mobile - Nov 5, 2020Packaging for Android fails with the GPU Lightmass plugin enabled. A customer reported this and I was able to successfully repro it, however my callstack was different. I'm attaching my logs and cal ...
Bone names of ~100 characters or longer crash the editor when baking to control rig
UE - Anim - Rigging - Control Rig - May 15, 2025This is an issue with inconsistencies over rig names and how control names are generated. We expect that a control name will be appended with _CONTROL or _CURVE_CONTROL. But because URigHierarchy: ...
Crash after Undo and garbage collection on sequencer track
UE - Anim - Sequencer - Apr 18, 2019A crash occurs after adding an additional camera track, undoing the additional, and then calling garbage collection Appears to be the same callstack found here [Link Removed] ...
Crash when removing an item from a list view
UE - Editor - UI Systems - Apr 18, 2019When removing an item from a list view the editor will crash when trying to update. ...
Crash after deleting Editor Utility Widget and accessing it from Window menu
Tools - Feb 25, 2019Crash after deleting Editor Utility Widget and accessing from Window menu ...
WP HLOD Crash on Small Cell Sizes
UE - World Creation - Worldbuilding Tools - HLOD - Jan 8, 2024Crashes after destroying a skeletal mesh attached via socket name (not bone name), the destroyed mesh remains welded.
UE - Simulation - Physics - Jul 18, 2025On welding physics bodies during primitive component attachment, UPrimitiveComponent::WeldToImplementation() calls GetRootWelded() and then GetBodyInstance() on the returned root. This searches by b ...
Crash when setting a bookmark after going live with Multi-User Editing
UE - Virtual Production - Apr 22, 2019When using Steam VR in combination with the Multi-User Editing plugin and the Virtual Production Utilities plugin the engine crashes when adding a bookmark while a server is running. ...