Currently me and my wife playing multiplayer mode.

and when we play multiplay, following issue happens.

1. A creates a new world. B can join successfully.
2. B leaves the world and can re-join successfully multiple times. B can even turn off the game, then re-join the world.
3. B leaves the world. A leaves the world (without quitting the game).
4. A opens up the world. B now cannot join and faced with the error.

Only way to multiplay is

every time newly created world and join to new world.

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1. Turning off Multiplayer for the specified world. Then later turn it on again. Doesn't work.

1. Logging out/signing back in the accounts. Doesn't work.