The game's own action buttons are too far to the edge on mobile phones and cannot be used because the screen is round and does not cover those buttons.You could also use the phone's action buttons to go back, but they don't work in the game, which is annoying because if you enter a place where you have to press X to exit, you can't. And the only solution is to enter and exit the game, which makes it frustrating.
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We're tracking this issue at MCPE-221980, so this ticket is being resolved and linked as a duplicate.
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