Alright so... a flying mech armor player and a companion drone use the same collision layer, but a player walking on the ground doesn't. So the drone would happily park right on top of you, and the moment you took off, you two were locked into each other and neither could move properly. I was able to reproduce this quickly.
Drones now don't collide with anything and after applying the fix, I am unable to recreate said issue, so this shouldn't happen anymore. The fix is live in 2.5.31, feel free to update the mod at your earliest convenience and try to reproduce it again. If the issue persists, please do report it here again.
Thanks for the report <3