Unreal Engine Issues
Unreal Engine Issues
ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor
UE - Framework - Blueprint Editor - Sep 6, 2025The underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph. ...
Skeletal mesh LOD 0 "LOD Info" loose their settings when we reimport
UE - Editor - Content Pipeline - Import and Export - Mar 6, 2020Set critical because loosing settings is dangerous. This is not a regression, the bug is in 4.22 and earlier version. We have to save all options of the LODInfo, currently nothing is saved. Also sh ...
Unable to summon the virtual keyboard on Android 9.0 with TargetSDKVersion=28
UE - Platform - Mobile - May 8, 2019Getting Emitter.NumParticles on Niagara's GPU compute sim returns 0
UE - Rendering - Architecture - Niagara - Jul 27, 2023This problem looks like the following parameters are not defined correctly. The correct parameter is Engine_Emitter_NumParticles. Engine_Emitter_NumParticles and PREV_Engine_Emitter_NumParticles .\ ...
[CrashReport] UE4Editor_PropertyEditor!FPropertyEditor::IsEditConditionMet() [propertyeditor.cpp:632]
Tools - Oct 27, 2017This is a trending crash coming out of 4.18.0. The issue appears similar to [Link Removed], which was just fixed in 4.18. User DescriptionsProject was just imported from UE 4.17.2 , opened a bluep ...
[MRQ] Deleting all jobs after rendering queue with executor causes an assertion to fail.
zComponent - Archive - Apr 18, 2022Deleting all jobs after rendering queue with executor causes an assertion to fail. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 by utilizing a For Each Loop and Delete Job node ...
Anim curves default back to 0.f instead of material default
OLD - Anim - Sep 13, 2017This seems to be a regression of [Link Removed]? Difficult to say. Originally reported here: https://udn.unrealengine.com/questions/391665/animcurve-parameter.html ...
Crash when Importing .OBJ using the File > Import into Level Option
UE - Editor - Content Pipeline - Import and Export - Sep 6, 2016This JIRA is being entered as a result of it being one of the top crashes in 4.13.0. Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 1671 ...
[Interchange] mesh outside LODs hierarchy are added to only lod 0 it should be added to all lods
zComponent - Archive - Oct 9, 2024Log Warning: LogRender:Warning: Missmatch between bShouldGenerateLowQualityLightmaps(0) and r.SupportLowQualityLightmaps(1)
UE - Graphics Features - Jul 13, 2016The issue occurs in //UE4/Main as well. This issue can be easily seen by opening any project at latest. It has been observed in new projects both with and without starter content. ...