Unreal Engine Issues

Meshs in a hidden sublevel may generate incorrect navmesh

If the level has hidden sublevels, the regenerated navmesh result appears to have a hidden sublevel mesh placed at the origin. Apparently, the reason is that bNavigationRelevant is no longer consid ...

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 ...

Creating a new theme is lost once the editor is restarted

Creating a theme is undone when restarting the editor. The .json file seems to become disassociated from the editor, the theme is reset back to the previous theme, and the new theme isn't available ...

Hit Box components created by listen server at runtime won't replicate

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. This is By Design. Replication for actors is disabled by default, and need to be enabl ...

GameplayEffects: Inherited UAssetTags and UTargetTags do not update their referenced tags correctly with inheritance

When inherited, it is reasonable to expect the tags added by the parent to be reflected in the children. If the parent is editted after the children, however, tags that are added or deleted are not ...

Editing a spline component in 5.4 no longer fires construction events.

Licensee found that in 5.4 the spline component when edited in editor, no longer triggered the construction script potentially breaking their art pipeline. The licensee mentioned the cause is likel ...

[Interchange] Adding fbx file to monitored folder triggered legacy import

The import dialog window is the legacy one and not the Interchange one. Auto reimport of modified FBX seems to be working properly with legacy or interchange selected depending on the CVar Rep ...

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 ...

[Rhino] Fail install of Datasmith Exporters on Rhino 8 on MacOS

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 ...