I have a black screen after launch and then the app goes back to the android desktop and is minimized, the game does not load even when tapping on the minimized window for the game. This issue happens on 2 devices i own:
Link to video for Hauwei T3 issue: https://t.co/tgTfRtlkiv?amp=1
Lenovo Tab 3, with Android 6.0
Hauwei T3, with Android 7.0
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As per this ticket: MCPE-31185 - part of the issue might be from conflicting files being left behind when changing the storage location on your device.
Are you trying to move the app through the Android storage settings at all?

When I enter the game after a few seconds the screen becomes black and I get out of the game
Cleaning up old tickets: This ticket has not been updated recently (~1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
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I have tried backing up worlds and removing the game and deleting the folder. It runs a few attempts and plays a game but is upto the black screen again