The content browser preview screenshots are broken

In the preview screenshots you can see that meshes mix with each other even though they are in a seperate blueprint.

The BallDoor_BP is only that square, not the whole door from the Metal_Door bp and the Office_Door isn’t even visible due to being blocked by the Metal_Door blueprint.

Thanks, this issue was already reported as UE-32911 and is fixed for 4.13.