Unreal Engine Issues

Level instance edit mode changes actor transforms

GI not coming in with lighting build data when lighting built outside of main scene

Volumetric Lightmaps are not shared between Persistent maps that have the same sublevels. Also observed in Release-5.4, CL 32500436 ...

AttachComponentToComponent node does not change the location of a Spawned particle system at runtime

You can use the "Spawn Emitter Attached" function as a work around ...

Actors removed from the world are unregistered both before and after EndPlay

Actors that are removed from the world have UnregisterAllComponents called twice. Removal can be caused by unloading a data layer that owns the actor. In cases like exiting the application or destr ...

CreateDynamicMaterialInstance will pull from the base rather than overridden mesh on SkinnedMeshComponent when run from construction script

When UPrimitiveComponent::CreateDynamicMaterialInstance is called on a skinned mesh, and the input material is invalid, we call USkinnedMeshComponent::GetMaterial to get the base material on the exi ...

Level Actors that are converted to a Blueprint using "Convert Selection to Blueprint Class" and using "Harvest Components" as the CreatingMethod, does not sanitize dots (.) character and make them invalid for operations like StaticFindObject.

When Level Actors are converted into a Blueprint using the "Convert Selection to Blueprint Class" option with "Harvest Components" as the creation method, the conversion process does not sanitize do ...

Anim State Notifies Don't Consistently Fire Begin/End Events for Looping Anim Sequences

If you have an Animation Notify State and set it up on an animation to start at the exact beginning of the anim sequence and finish exactly at the end (I have attached a picture of this). It doesn't ...

Message to rebuild lights does not display after static mesh position has changed

In a static lighting environment, moving static objects no longer marks the built lighting as invalid. This prevents the on-screen warning from appearing. Regression introduced in CL: 25964466 on / ...

NPC - When an NiagaraParameterCollection asset is duplicated or when its namespace is changed, any existing parameters get incorrectly duplicated/renamed with the addition of the namespace prefix

When an NPC asset is duplicated, the ne wasset gets incorrectly duplicated parameters: one set with the correct names, and one set with the original namespace prefix embedded into the names. These i ...

Collision lost from body when using world composition and streaming

Physics object from a streamed level does not interact with other physics objects in persistent level. ...