Thanks so much for the help and feedback! I really appreciate it!
I’ll play around with debugging and see what’s going on.
In theory I could give my levels HUGE bounding boxes, and they could act as planes to trace against perhaps?
This mechanic is central to my game, as you need to be able to bounce in and out of fps mode to direct units in 3d space, so I’d love to crack this 
I guess another aspect is that I am using pawns, not characters, since all my units are ships, not people, so they don’t need much of the functionality that the character class has. They’re using 6DOF movement instead.