This is a bit confusing and contradicting. Could you show the hierarchy?
and it appears i cannot rotate the hull object in the BP viewport. is that normal?
I feel that your mesh is not facing the right way to start with - this is something that you need to take into account before you import it.
If this was rocket ship that is supposed to launch upwards, you’d need to ensure that the mesh that was created and already oriented correctly in the software it came from:
