Unreal Engine Issues

Alembic Caches Not Working With Lumen

It appears that Alembic caches do not influence Lumen's indirect lighting (except for shadowing). Alembic geometry caches should influence lighting in Lumen as any other geometry in a level. I hav ...

IOS mouse pointer / cursor support

Dependency tracking of external actors broken when using python

Licensee reports dependency tracking using Python doesn't work with WP since it relies on external actors. ...

HLOD lightmap lost after level reopening with "save LODActors to HLOD Packages" option in project settings is on.

C.haos Cloth : ClothLOD does not change when out of view

Cloth LOD Index is changed only during the mesh is on the screen. LOD Index is set to 0 at spawning, so clothing simulation runs as minimum LOD level until the mesh is in the field of view. It's no ...

SetIsRequestingUnloadAndRemoval causes OnLevelUnloaded callback not to fire

When unloading a level via ULevelStreamingDynamic, if you register a callback for OnLevelUnloaded and then unload the level with SetIsRequestingUnloadAndRemoval, the level appears to be removed from ...

Ray traced reflections skewed with un-combined meshes

Path Tracing denoiser is not stable in animation

When rendering an animation with the path tracer through MovieRenderQueue, at low sampling rates the denoiser produces splotchy results that flicker from frame to frame. The current denoiser (Ope ...

RebuildHLOD UAT script doesn't properly handle the -nop4 command line flag

The script performs P4 commands even if -NoP4 was specified. It should properly handle -NoP4 by checking for  if (CommandUtils.P4Enabled) ...

Create a high poly version of the base sphere

We have an issue with artefacting of virtual shadow maps on low poly meshes: [Link Removed] We would like to request a higher polygon version of the sphere for UE5's release/starter content, which ...