Unreal Engine Issues
Unreal Engine Issues
Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open
UE - Niagara - Mar 7, 2019Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open Discovered when verifying [Link Removed] (also similar to [Link Remo ...
World Memory Leak crash creating new level blueprint after editing sub level blueprint
UE - Gameplay - Jan 27, 2020Crash occurs when the user adds a sublevel to the current level, edits the sublevel's level blueprint, and then attempts to make a new level. The state which triggers the crash seems to be when the ...
Package fails after adding DesktopPlatform to public module dependency list
UE - Foundation - Core - Apr 6, 2017Adding DesktopPlatform to the PublicDependencyModuleNames.AddRange() section of the Project.Build.cs file causes the project to fail packaging with the following error (full package logs in callstac ...
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 ...