It's hard to show through a screenshot, but I found a small bug with bows. The animation that makes the item Steve is holding is broken on the bow. Instead of a slow bob, Steve shakes the bow up and down at a rather quick speed. I'm unsure if there are any other items that do this as well.
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We're tracking this issue in MCPE-138993, so this ticket is being resolved and linked as a duplicate.
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