Unreal Engine Issues

Unable to set simulate physics to false through blueprints

If "Editable when Inherited" is disabled for the static mesh component the issue does not occur. The bug could be related with other UDN cases:https://udn.unrealengine.com/s/case/5004z00001ruXmEAAU ...

When change a skeletal's collision from QueryOnly to QueryAndPhysics at runtime, dynamic properties won't be updated

It seems in the FBodyInstance::InitDynamicProperties_AssumesLocked, we early out when the body instance's collision is QueryOnly, but actually we only recreate its physics state when changing from N ...

Actors in a folder in outliner are moved to the top level by duplicating the world partition level with WorldPartitionRenameDuplicateBuilder

Spawnable Level Instance via Sequencer in WP map

ULevelInstanceSubsystem::OnActorDeleted: check(!IsEditingLevelInstanceDirty(LevelInstance) && !HasDirtyChildrenLevelInstances(LevelInstance)); ...

Nanite mesh is shown with player collision

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 ...

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 ...