Hi @Drew1048, thanks for sharing this info, that sounds frustrating when all you want to do is play together. If you haven’t already, I suggest sending this info straight to Pipeworks (the console developers). You can do that using this form: Terraria: Console & Mobile Bug FormMe and my friends really want to start a multiplayer world together but this bug is stopping us.
Every time we play in someone else's world and rejoin it, all map progress is lost.