Unreal Engine Issues

Cook errors from Landmass plugin in 5.4

When actors are placed in a folder their attachment dependencies are no longer loaded when the root actor loads

Level Sequences can't reference actors that reside in Level Instances different from the ones they are executed from.

Level Sequences can reference many actors, but the references are not solved if the actor is not in the same Level Instance as the one the Level Sequence is being played from, or the root level from ...

Ambient Occlusion darkens the entire scene in VR Preview

Ortho near plane clips geometry in Editor Top view

When the viewport is in Top (ortho) Lit mode the near plane clips through geometry as you zoom the view in and out. ...

Child actor primitive root component failing to decrement attachment counter to 0 before UPrimitiveComponent::FinishDestroy

Dragging a BP actor containing a child actor component of an actor class with a static mesh as its root component into the scene viewport will cause artifacts and hit SceneData.AttachmentCounter.Get ...

Water Brush incorrectly captures rivers with non-square landscape resolution

The adding of terrain tiles eventually results in a reallocation of the landscape and something becomes de-synchronized between the water system and the landscape system resulting in the deformation ...

Lightmap UV generated on Windows and Mac is not deterministic

MemReport does not seem to respect mesh streaming

The function "FStaticMeshLODResources::GetResourceSizeEx(...)" does not take into account that the buffers might be emptied, due to Mesh Streaming. This causes "obj list" to report sizes larger than ...

Screen Probes and Specular Firefly Flickering near screen edges

Lumen's rough specular indirect lighting buffer can have fireflies along the bottom and right edges of the screen. Also tested in //UE5/Main, CL: 35177423 ...