The player movement on top of boats is glitchy, the players only moves by snapping to a block pixel on the boat.
To replicate: put down a boat and move it and go on and off it a couple of times and it starts bugging
Video attached Below:
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Thank you for your report!
We're tracking this issue in MC-156980, so this ticket is being resolved and linked as a duplicate.
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The video is private, but does MC-156980 describe your issue?