Unreal Engine Issues
Unreal Engine Issues
Crash undoing variable change in Animation Blueprint.
OLD - Anim - Aug 1, 2016Crash occurs when the user changes a variable in the animation blueprint, and then undo's the change. Note that this occurs with any variable being used, but the callstack will be some what differe ...
[CrashReport] UE4Editor-MetalRHI.dylib!TranslatePrimitiveType()
UE - Graphics Features - Nov 16, 2017This is an infrequent but longstanding Mac crash that has occurred since at least UE 4.15. User DescriptionsTried to look at LOD Coloration Callstack from Log[2017.11.15-20.09.54:885][537]TextureS ...
Widget components and widgets in screen space are not the same color
UE - Editor - UI Systems - Jun 27, 2016Widget components appear to be affected by lighting. This causes differences in color between widget components and widgets that have been added to the viewport. ...
Lighting Build Fails With High Density Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2018Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...
Crash when exiting PIE after execute demorec command
UE - Networking - Jun 8, 2018This issue is regression because it doesn't reproduce 4.18.3. Default level is just the level to move. Demorec level runs demorec command with beginplay and has one replicated variable. UEditorEn ...
Naming a Blueprint function/graph with non-ASCII characters can cause a build failure for certain cooked targets when Blueprint nativization is turned on.
UE - Gameplay - Blueprint - Nov 2, 2017This is due to the [Link Removed] encoded UFunction object name passing through UHT into the boilerplate code (*.gen.cpp) that gets generated from the nativized Blueprint's C++ header file. The iss ...
MetaSounds isn't working with Modular Game Features - LogMetaSound: Error: Target interface is not registered
Audio-Gameplay-Engineering - Nov 22, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Errors:[2022.11.22-18.11.28:472][ 0]LogMetaSound: Error: Target interface is not regi ...
Gamepad continues to control editor menus during Mobile PIE session
Tools - Dec 4, 2017When using a Gamepad, there is an issue where input from the controller continues to control editor menus during Mobile PIE session. This issue does not a appear to be a regression. Versions Tested ...
Blurry RVTs after camera jump
UE - Graphics Features - Aug 7, 2025When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...
Normal are different after Merge Actor on scaled objects
OLD - Anim - Feb 8, 2018Normal are different after Merge Actor on scaled objects. If the actors aren't scaled, the issue doesn't seem to occur. A licensee is trying to use the Merge Actor tool to optimize their entire pro ...