Unreal Engine Issues
Unreal Engine Issues
Crash when confirming a directory to import a USD file to via the USD Stage window
UE - Editor - Content Pipeline - Import and Export - Nov 21, 2019Crash when confirming a directory to import a USD file to via the USD Stage window The repro does not seem to be 100% consistent and it can take a few attempts to hit the crash. The USD Stage wind ...
Crash when duplicating multiple components at once
UE - Gameplay - Blueprint - Apr 4, 2019When duplicating multiple components at once it appears to crash the editor. Regression: Yes, this appears to be working in the previous version of the engine (4.21.2-4753647) ...
Attached Project Crashes When Setting RVO Avoidance
UE - Gameplay - Blueprint - May 6, 2016The attached project will crash when attempted to toggle the Use RVO Avoidance option of the Character Movement component. This only occurs after toggling the same option in two other blueprints pri ...
Crash on bake pose when skeleton contains a virtual bone
OLD - Anim - Jan 22, 2018When a skeleton contains a virtual bone, performing Bake Pose can crash the editor. ...
Crash changing variable type from Object Reference to Actor Soft Object Reference
UE - Gameplay - Blueprint - Oct 3, 2017REGRESSION: No, this occurs as far back as 4.16. Crash occurs when the user changes a variable type from Object Reference to Actor Soft Object Reference. ...
Crash when duplicating an UMG Animation and not renaming the Duplicate
UE - Anim - Sequencer - Dec 19, 2018Crash when duplicating an UMG Animation and not renaming the Duplicate Hitting Enter correctly warns the user you have an existing Animation by that name, and doesn't crash Reproduced in //UE4/Rel ...
Ensure after reparenting Blueprint and moving a property to the new parent
UE - Gameplay - Blueprint Editor - Jul 20, 2023Moving a property from a recently reparented BP to its new parent will assert in FBlueprintCompileReinstancer::MoveDependentSkelToReinst at ensure(PrevStructSize == NewStructSize) This only see ...
Scaling skeletal mesh components breaks capsule shadows
UE - Graphics Features - May 18, 2016Increasing the scale of a skeletal mesh actor with Capsule Shadows set to true causes the shadow to appear chunky and broken. Regression (No), feature was not present in 4.10.4. ...
Editor Crash when attempting to enter Mesh Paint / Landscape /Foliage Modes while Simulating
UE - Editor - Workflow Systems - Jan 12, 2017Editor crash will occur when a user attempts to enter the Mesh Paint, Landscape, or Foliage modes while Simulating. Links to CrashReporter: Foliage: [Link Removed] Landscape: [Link Removed] Mesh Pa ...
Crash in UDataTable::RemoveRow(FName RowName)
UE - CoreTech - Jun 13, 2025This is a regression, the crash seem to have been introduced by CL 40129784 on ue5-main and persists in latest. Function UDataTable::RemoveRow(FName RowName) uses macro DATATABLE_CHANGE_SCOPE_SINGL ...