Unreal Engine Issues
Unreal Engine Issues
Non-deterministic cooking issue in .uexp of level asset file
UE - Core - Data Pipeline - Cooker - Jan 17, 2023There is a deterministic cooking issue with .uexp map of level asset. [Link Removed] Closed is the similar issue fixing by ...
Surface Cache Cards not generating correctly for Packed Level Actors
UE - Graphics Features - Lumen - Jan 24, 2023Mesh paint Mode can't find texture for Non-Nanite meshes
UE - Graphics Features - Mar 6, 2023Non-existing config file loading could cause memory leak
UE - Core - Systems - Oct 19, 2023The cause of this problem is the Engine has code paths which register a new allocated object to Map without deleting the previous object. In the repro project, whenever hitting Space Bar, the level ...
AddOrUpdateWarpTargetFromComponent behaving incorrectly when using a SceneComponent with non-identity scale
UE - Characters - Animation - Jul 15, 2025When using AddOrUpdateWarpTargetFromComponent you can pass in a SceneComponent, Relative Location and Rotation as well as optionally choosing to have the warp target follow the object if it moves.If ...
Center of Mass Offset tooltip incorrectly states that you can't view the CoM's location
UE - Simulation - Physics - Jan 3, 2017In the rich tooltip for Center of Mass Offset, it reads "Currently there is no way to view where the Center of Mass is actually located..." In 4.15, there's a new feature that does allow you to see ...
FBX re-import: only non fbx metadata should be restored during re-import
UE - Editor - Content Pipeline - Import and Export - Oct 23, 2020The imported metadata is prepend with "FBX." so we can easily know if a metadata was imported or created in the editor. ...
Granular Synth Component does not generate sound on non-Force Inline assets
UE - Audio - Mar 7, 2022Granular Synth Component is not generating a sound as it previously did. ...
Non-edit layers landscape don't work adequately with Nanite landscape while painting
UE - Graphics Tools - Terrain - Landscape - Oct 24, 2023Result : while displaying the Nanite version of the landscape, the paint layers behave erratically (see video : [Link Removed]) If rebuilding the Nanite data, the bug gets fixed until the user sta ...
Light Leaking With Raytraced Shadows On Lights With Non-Zero Source Length
UE - Graphics Features - Ray Tracing - Jul 23, 2024Light sources which have the source length attribute set to a value greater than zero seem to be leaking light through occluding geometry (see the image below and repro project). Moving it away from ...