Unreal Engine Issues

Virtual texture lightmap shows black result after level streaming.

When streaming in a level with a virtual texture light map using LoadStreamedLevel, with bShouldBlockOnLoad=false. we will see black in the lightmap. This is caused by ResourceCluster->GetAllocatedV ...

Lumen causing exposure issues when several viewports are opened

Gameplay ability sending server RPC can disconnect client during seamless travel

During seamless travel, the engine renames kept actors into the transition/destination level. This process results in the actor's components being unregistered and re-registered. For the ability sys ...

Subobject of garbage actor may be reassigned to newly created actor on the client

When an actor channel is cleaned up, the actor and its subobjects in the CreateSubObjects array are destroyed/marked as garbage in DestroyActorAndComponents. However, default subobjects are not adde ...

Incorrect transforms when breaking a packed level actor

See "Steps to Reproduce" ...

LevelInstance: Editor Texture Streaming (UDN)

Further investigate and fix Editor Level Instance texture streaming data update which currently isn't being updated when moving a Level Instance in the editor. ...

Attachment changes on the client for non-replicated actor may be stomped by replication

For projects relying on attachment to be performed on the client before the server, such as to prevent latency, this can result in attachments being overridden when USceneComponent::OnRep_AttachChil ...

World Partition Editor minimap build failed

The issue was reproduced when building a minimap for an open world level with no Actors with "Is Spatially Loaded" enabled. Placing additional Actors with "Is Spatially Loaded" enabled in the level ...

[MetaSounds][Builder API] - Editor crashes when setting node position to a large value

Setting the location of a node a the MetaSound Editor Subsystem to a very large value crashes the editor.Unhandled Exception: EXCEPTION_STACK_OVERFLOW Crash reporter link: [Link Removed] ...

Edits made to Control Rig Curve Nodes in the Details panel of the blueprint editor are not saved back to original Node

Reported by licensee in [Link Removed] Changes made to the Curve node in a Control Rig Blueprint aren't saved back to the original node when the changes are made in the Details panel of the bluepri ...