When logging in after exiting the game, the player model resets to default. When trying to edit the skin however, it says "Failed to Reload Character (no.)"
A workaround is to delete the character itself and recreate them, although it is temporary and will need to be done every log in.
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Thank you for your report!
We're tracking this issue in MCPE-55968, so this ticket is being resolved and linked as a duplicate.
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