I mean, it wasn't even moving around like a ship; it was literally jumping around. I can try video capping it, if I can reproduce it
EDIT: Okay, I reproduced it in a rather trippy video. Unfortunately, its also like 131 MB in size. Should I upload it here, somewhere else, or what?
And in case you want more detailed info for now, this is what I did:
I enabled cheats (the exact same thing happened to me the other day without them, so I figured they wouldn't change anything and I'm feeling too lazy to actually do the mission right now), turning on invincibility for myself, Simak, and the Altan Orde. I then proceeded to ram Simak station, (again, didn't do this before; I only got fairly close, but the same thing happened...) And the station literally stuck to me, rotating along my front as I turned (as far as I could tell.) Then, I managed to shake it off, only to have it orbiting around my wake.