Also... just looking at this now:
"When you go too far out or stand on a moving island for too long, the game freezes and you have to re-open it"
I think the problem is that the player is being destroyed when the island moves too far out (After a certain distance, the island will destroy itself and anything on it to prevent the objects from going into the dark realm) and destroys the player also. Thanks for the feedback! I will make sure to fix this in the remake.