Unreal Engine Issues

Closing Twinmotion during a video export leads to crash

Creating an AnimStreamable asset immediately crashes the editor

When creating an anim streamable we immediately fail a check in the compression code in FCompressibleAnimData::FetchData: checkf(AnimSequence, TEXT("Invalid animation sequence while trying to fetc ...

Lumen indirect lighting artifacts when far from world origin

Lumen seems to not be using Large World Coordinates somewhere. The Lumen Scene develops artifacts at large distances (5000 KM) from the world origin. ...

Add new Filter in ULevelStreamingPersistenceSettings to allow filtering a class (Component) only when its outer class is of a certain type/types

This requests comes from a UDN : [Link Removed] ...

Lumen with HWRT has an artifact on AMD GPU

Repro test required.We don't have AMD GPU to create the same environment here, so we collected reproduction information from the licensee and passed it on as is.Let me know if you need any additiona ...

Atmosphere Sunlight shafts, artifacts, for both cascaded and virtual shadow maps.

Very large objects casting dynamic shadows on the sky atmosphere can lead to flickering (cascaded shadow maps) or square patterns (virtual shadow maps). ...

Duplicated ChildActor on World Partition Streaming

The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...

When the Groom asset LOD switches from Strands to cards, hair rendering is stuttered

It only happens when changing LOD from strands to cards.not in situations where changing LODs from cards to cards, cards to strands, strands to strands. The card meshes are not rendered immediately ...

UDataTableFunctionLibrary::AddDataTableRow() fails for blueprint-defined row structure types

The editor-scripting blueprint node "Add Data Table Row" fails when the Data Table uses a Row Structure that was defined in blueprint. Internally, it checks if the passed-in UScriptStruct is derived ...

Skip Assigning Gamepad to Player 1 does not work

This is a regression from a long while ago that needs to get fixed ...