My and my siblings usually play on a world together, but something strange has been happening. Whenever one of us joins, plays for a bit, then leaves, the game usually breaks because I'm guessing the game still assumes that person is on. I check the player list when pausing and it still says their on but they aren't. I wouldn't say anything if it didn't seem to affect the entire game, but for some reason the whole world freezes. If I break a single block after they leave, nothing happens and when force quitting the game and re loading, it loads up the last save, whether that be an auto save or the last save and quit.