Unreal Engine Issues
Unreal Engine Issues
Crash when element is added to a map variable with unhashable key
UE - Gameplay - Mar 21, 2017Crash when element is added to a map variable with unhashable key. An error is thrown on compile but an element can still be added under the Details panel of the variable. Crash Reporter: [Link Rem ...
Fringe Saturation in Post Process Volume not functioning
UE - Graphics Features - Jul 27, 2015Setting the values for Fringe Saturation within the Post Process Volume does not seem to have any visual change. The documentation suggests that changing the Fringe Saturation will either increase ...
When multiple HLODs are set, the transition does not occur correctly
UE - Graphics Features - Aug 30, 2019The [bIsVisible] flag is set to [1] by the following judgment.const bool bIsInDrawRange = DistanceSquared >= Bounds.MinDrawDistanceSq * HLODState.FOVDistanceScaleSq; Judging from this code, I bel ...
World partition mini map fails to build with an Unhandled Exception while using r.Raytracing.Nanite.Mode=1
UE - Graphics Features - Jan 31, 2023This is a regression. Tested in //UE5/Release-5.0 CL20979098 Build mini map fails with an Unhandled Exception while r.Raytracing.Nanite.Mode=1 is enabled in the DefaultEngine.ini. ...
[CrashReport] UE4Editor_SlateCore!FHittestGrid::GetBubblePath() [hittestgrid.cpp:145]
UE - Editor - UI Systems - Slate - Oct 27, 2017This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Based on the affected project names, this crash seems co ...
A 5.5 level that contains a Text3DComponent in a BP crashes the engine when opened in 5.6 (and up)
UE - Virtual Production - Sep 11, 2025A 5.5 level that contains a Text3DComponent in a BP crashes the engine when opened in 5.6 (and up). The licensee has provided his analysis: Description: Level instance created in UE5.5 and re-saved ...
Reimporting static mesh doesn't respect changed lightmap settings
UE - Editor - Content Pipeline - Import and Export - May 11, 2023Licensee reports change of behaviour between UE4 and UE5 when reimporting a mesh after changing its lightmap build settings. Change of behaviour occurred in 17404767, which was to fix a similar pro ...
FixDeps runs on every build even without any changes
UE - Platform - Linux - Oct 21, 2016This has been fixed for 4.15, but 4.14 was branched before the fix. Note that this issue is distinct from [Link Removed] and the fix is much simpler. Note that [Link Removed] (pull request #2839) ...
Mutable references MetaHumans heads directly, but DNA Assets are private
UE - Anim - Mutable - Sep 18, 2025When we switched our project to 5.6.1 This error appeared on build. The compilation of the Mutable assets in the editor is not reporting any issue. ...
[Stall] AudioMixerSourceManager::FlushCommandQueue when opening editor for asset
UE - Audio - Apr 7, 2022Live issue. Stall occurring for some users in the 5.0 Release. Currently hit 577 times by 500 users as of 2022-04-29 No specific project occurring on ...