When someone gets killed in a LAN multiplayer and respawns, his arms will be stuck in a manner like when aiming with a bow. It seems only to affect guests not host.
Steps to reproduce: host a LAN world and invite another player
-kill him
-Now you will notice his hands stuck like I said above.
Thank you for your report!
We're actually already tracking this issue at MCPE-58861, so I will resolve and link this ticket as a duplicate.
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