Unreal Engine Issues
Unreal Engine Issues
Crash happens when changing Animation Mode to any other mode while a Control Rig is selected.
UE - ACT Character - Control Rig - May 17, 2022This is a regression. Tested in //UE4/Release-4.27 CL18319896 An assertion is thrown when changing Animation Mode to any other mode while a Control Rig is selected. ...
C++ Actor Component is removed from Actors in scene when the Editor is restarted
UE - Core - Systems - Jun 8, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 C++ Actor Component is removed from Actors in scene when the Editor is restarted. ...
Stat AI reports AI rendered regardless of frustum
UE - Rendering - Features - Jun 23, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 Stat AI reports AI rendered regardless of frustum setting. ...
Child component reports Parent during On Hit events instead of itself
UE - Runtime - Simulation - Sep 12, 2022This is a regression tested in //UE4/Release-4.27 cl18319896 Child collision component reports its' Parent during On Hit events instead of itself. ...
[CrashReport] UnrealEditor-AppFramework!SColorPicker::HandleParentWindowClosed(TSharedRef<SWindow,1> const &) [SColorPicker.cpp:1530]
UE - AI Workflows - UI Systems - Sep 26, 2022Generated from CrashReporter This is NOT a regression. Tested in //UE4/Release-4.27 at CL18319896 Tested in //UE5/Main at CL 22175708 - Issue did not occur ...
Non-deterministic cooking issue in .uexp of level asset file
UE - Core - Data Pipeline - Cooker - Jan 17, 2023There is a deterministic cooking issue with .uexp map of level asset. [Link Removed] Closed is the similar issue fixing by ...
Can't connect Date Time and Time Spawn pins to math nodes
UE - Framework - Blueprint Editor - Feb 2, 2023we can do a "cheap fix" here by adding the "IgnoreTypePromotion" metadata to the date time functions, but there are some underlying issues with the FindBestMatching func in this case causing it to f ...
Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one
UE - Rendering - Features - Mar 27, 2023There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...
Crash when double clicking on RowStruct's CurveEditor
UE - Editor - Mar 15, 2024This problem can be reproduced with UE5.3 even after applying fix [Link Removed] Closed . We have verified this issue with U ...
Initialization error when creating FEventReply objects from Python
UE - AI Workflows - UI Systems - UMG - Nov 28, 2025the handled value passed to unlock_mouse is actually treated as unhandled, because FEventReply has no uproperty and no Identical()function of its own. Adding WithIdenticalViaEquality can fix this is ...