Unreal Engine Issues
Unreal Engine Issues
Adding a node or variable to a component referenced by another actor crashes editor
UE - Gameplay - Blueprint - Aug 3, 2015If compile is pressed after adding a variable or node to a blueprint component that has a variable referenced within another blueprint actor, the editor immediately crashes. Frequency: 1/1 Crashr ...
Gameplay Tags Can't Be Edited Via "Bulk Edit via Property Matrix"
Tools - Dec 25, 2019You can't edit a gameplay tag when you bulk edit via the property matrix. Found in 4.23.1 CL#10757647 Reproduced in 4.24.1 CL# 107567474.25 Main CL#10868506 ...
[CrashReport] UE4Editor-CoreUObject!UObject::SetLinker(FLinkerLoad *,int,bool) [UObjectLinker.cpp:107]
UE - Foundation - Core - May 13, 2019Comment from user in crash group:I updated unreal engine to 4.22.1 and changed the project version from 4.21.2 to 4.22.1 and now it crash whenever i open a map Generated from CrashReporter ...
Debug Console output remains on screen after closing VR Preview if "Debug in stereo layer' is enabled
UE - Platform - XR - Jan 23, 2018Affects VR Preview in Editor Reproduced in 4.18.3 CL 3832480 and 4.19 P1 CL 3837072 ...
[CrashReport] UE4Editor-CoreUObject.dylib!FArchiveAsync2::Serialize()
UE - Foundation - Core - Cooker - Nov 2, 2017This is an infrequent Mac crash that has occurred for a few users between 4.17 and 4.18. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017 ...
Decals Normal only + Material Attributes
UE - Graphics Features - Mar 24, 2023This does not just work with BaseColor, you can affect any of the outputs by connecting something to a disconnected CreateMaterialAttributes. ...
WorldToClip/ClipToWorld transform in materials not behaving as expected
UE - Graphics Features - Dec 19, 2025In 5.3, the specified code will return all 0 or very small as expected. However in 5.4.4 and onwards (also checked in 5.6.1 & 5.7.1), it returns very large numbers. ...
Unwanted black boundaries are displayed in a vertical split-screen with 3 players.
UE - Gameplay - Dec 2, 2019Floating point error from UGameViewportClient::SplitscreenInfo causes this issue. FMath::TruncToInt( 3240 /*ViewportSize*/ * 0.333f/*Ratio in SplitScreenInfo*/ ) = 1079 I suggested a following t ...
HTML5 fails to compile on Mac/Windows - Shipping
UE - Platform - Apple - Jan 13, 2017HTML5 fails to compile on Mac when built for shipping in binary I did not see this when packaging for development yesterday Does not occur in 4.14.3 The error appears to be WebGL relatedError: Web ...
Foliage Disappears Using OpenGL4 in Packaged Game
UE - Graphics Features - Apr 11, 2018This issue cannot be reproduced in 4.18 but can be reproduced in 4.19.1 as well as Main (CL 3998250) therefore I am marking this as a regression. ...