Unreal Engine Issues
Unreal Engine Issues
Incorrect formatting of #include statements in new code class added to project that is not properly set up for IWYU
Tools - Nov 27, 2018Attempting to add a new code class to a project that is not correctly set up for IWYU (such as an older project that may not have been properly modified for IWYU when upgrading) will result in the b ...
Volumetric Lightmaps do not work with Landscape texture mapping
UE - Graphics Features - Feb 13, 2019It appears that the Lightmass Volumetric Lightmap does not work with Landscape textures. When it samples the Landscape with some textured material, the resulting lighting build data does not match t ...
UDIM UVs are wrong
UE - Graphics Features - Feb 19, 2020UE4 applies 1-x transform to V coordinate when importing UVs from mesh. This is to handle GL/D3D differences in texture origin, but it breaks UDIM page addressing. It's possible to apply a fix to ...
Split pins on nodes within sub-graphs in an animation blueprint are broken
UE - Anim - Runtime - Mar 16, 2021There's a bug in the anim bp compiler which results in split pins on animation nodes not being merged properly back onto their parent pin during compilation. The result of this is that any input to ...
Untracked Metadata does not work on arrays of soft objects
UE - CoreTech - Jul 19, 2021The "untracked" metadata field turns off tracking of soft object references so they will not appear in the content browser or modify things like cooking rules. It works fine on individual references ...
Building Geometry removes Blueprint Actors from a level
UE - Gameplay - Blueprint - Nov 28, 2022Regression: Tested in UE5/Release-5.0, the issue does not occur so it is a regression. This issue appears to be effecting Blueprint Actors specifically, as creating a Blueprint of any other class d ...
Crash occurs clearing Image in UMG_Throbber Appearance Settings
Tools - Sep 30, 2016Editor crashes when you attempt to clear the image in the throbber UMG. Log is attached txt file Tested in 4.13.2 CL 3145013 - This does not happen ...
Crash When Pasting More Than 1024 Characters Into Component Name
UE - Gameplay - Blueprint - Mar 16, 2017I think this issue is mostly caused by users accidentally pasting a lot of text from (for example)a blueprint node while renaming a component. All you have to do is have a BP node in your clipboard ...
Crash Occurs When Importing a .ABC File as Skeletal Mesh Into Project That Already Contains Asset's Materials
OLD - Anim - Jun 8, 2018Editor crashes when importing an .abc file as a skeletal mesh and the assets materials already exist inside the project. -Materials need exist inside project before import -If the .abc file is imp ...
A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone
UE - Gameplay - Blueprint - Sep 9, 2015A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone. The following error is given: Can't save ../../../../../../UnrealEn ...