When you click on a button or lever, not only does the sticky piston only act as a piston, but the piston pushing is sped up, and the lever/button breaks. I am trying to make a volcano in minecraft with a sticky piston, but I cannot do this until this bug is fixed. This same bug applies to 1.15.1.
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Thank you for your report!
We're actually already tracking this issue in MC-5726, so I resolved and linked this ticket as a duplicate.
However, that ticket has already been resolved. That means that this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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