In multiplayer if you watch another player using what they are holding there is no movement, the object just stays in idle position.
Possibly related: the last held object is what you see another player holding when they switch to empty hand.
Both apparent in Creative, not checked in Survival.
Linked issues
Comments 3
Thank you for your report! This issue was, however, reported at an earlier time as MCPE-12097. Feel free to add any information you find relevant in the comment section there.
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Confirmed for Survival
Galaxy Note 1