Unreal Engine Issues

"Assertion failed: CellIndex < CellIndexMax" when there are a lot of HISM foliage in a level

Users have come across an issue in 5.4 that causes an assert when many foliage or HISM objects are placed in a level due to a cell size limit. ...

Foliage breaking when used Sublevels into a Persistent Level

Remove IFAs when they no longer have any instances

Some painted foliage appears distorted when moving a selected foliage.

FoliageInstancedStaticMeshComponent Include Actor in HLOD state in InstancedFoliageActor is not set by change in FoliageType asset

Crash when adding foliage instances to unloaded IFA

Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs.  ...

Foliage instances don't move with a static mesh when it is shared between two foliage actors

From Licensee: The bug comes from the call of the function `FoliagePartitioningUtils::Update` in the method `AInstancedFoliageActor::MoveInstancesForMovedComponent`. When the function `FoliageParti ...

Moving a static mesh placed across world partition grids does not properly move the foliage instance on it

Foliage actors and deferred decals

Licensee - " We noticed an issue when trying to use foliage to instance deferred decals. The decal will show up, but only on what looks like the first instance of the decal. If I don't use foliage ...

Foliage cannot be selected after deleting a single instance

This issue occurs in both World Partition and Non-World Partition levels, and does not seem to occur with Nanite meshes. You can still select Nanite foliage instances after placing them, but selecti ...