Wow it's been taken over,,that is very violent movement,,and to see that slide off shaft like that is crazy...I would say that gimble motor berring is shot to move sideways like that let alone come apart,,almost like it's lost some internal clip to keep it on snug,,,I have to have a search and see what holds all this together,not to sure with p2 but same set up with gimble on others,,,I personally would be now hunting for a second hand p2 for parts or just the gimble,,,replace the whole unit just to get it right,,,you could just buy gimble motor but yes it should not move sideways ,,that tell me berring shot or something in there broken,,still thinking on the violent motion but could be caused by something in that gimble,,,