Specific Blend Mode of Material on UMG render incorrectly when HDR is enabled

UE - Graphics Features - Jan 27, 2022

This issue occurs with the Additive and Alpha Holdout settings. ...

Alembic Caches Not Working With Lumen

UE - Graphics Features - Lumen - Jan 20, 2022

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 ...

Dependency tracking of external actors broken when using python

UE - World Creation - Worldbuilding Tools - OFPA - Jan 19, 2022

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

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

UE - Simulation - Visual - Jan 6, 2022

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

UE - World Creation - Worldbuilding Tools - Dec 16, 2021

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 ...

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

UE - World Creation - Worldbuilding Tools - HLOD - Nov 24, 2021

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

UE - Content - Engine - Nov 23, 2021

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 ...

Unexpected behavior when Actor Parenting in the World Outliner of a WP map

UE - World Creation - Worldbuilding Tools - World Partition - Nov 23, 2021

Licensee reports the following in the UDN: There seems to be some other erratic behavior when using parenting in world outliner (i.e. drag and drop one actor on another one in world outliner).Since ...

JSON Serializer FromJson function returns true when property types don't match

UE - CoreTech - UObject - Nov 16, 2021

If the type of a property in a Json string doesn't match the expected type in the Json serializable class being created, then the value for that property will not be read in. However, FromJson still ...