if you swipe out the game while you are falling asleep in a bed, you won't be able to access the world anymore. When attempting to reaccess the world, it will kick you out. one way to solve this is to make a copy.
Comments 2
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
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Does MCPE-79465 describe your issue?