When I try to load my survival world on my Nintendo Switch, the loading bar gets very close to the end, but I can never log in. I had to log out and then log back in, and it just didn't work and hasn't since.

Edit: I logged out of the world the last time it worked in the Nether, and my brother who also plays on his Switch didn't, and he can log in to the world using a local connection while I'm still loading, so it doesn't seem to be a save corruption as he can connect to the world on his system.