More specifically in Shipwrecked (since in Hamlet the bodies of water are too small). If you move too fast and get far enough away, other followers like pigs and Packim Baggims will teleport close to you in order to keep up. Ro Bin also does this but only on land. When you are on a boat, it starts flying and when you go far enough away it will remain in the same place and not teleport to you meaning you have to go back a long way to get it to follow you again and if you want it to follow you all the way to your next destination you have to keep pace with it which is very annoying because he flies very slowly. A temporary fix would be to at least give him a faster speed when flying.
travel a long distance with a boat away from ro bin