I placed down a sticky piston where it instantly got powered and it for some reason extended in two different directions.
When I tried to mine the extra piston head, it wouldn't go away. I reloaded and the extra piston head disappeared, so it could've been a client glitch and there was really no piston there.
Thank you for your report!
We're tracking this issue in MC-254385, so this ticket is being resolved and linked as a duplicate.
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