I know this is old, found it on google front page though. This issue still exists. It is caused by world guard, and happens as a result of having the build flag set to deny. Pistons are not able to "break" the blocks by moving them while build is disabled. But if you are in a spawn you want build disabled
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I know this is old, found it on google front page though. This issue still exists. It is caused by world guard, and happens as a result of having the build flag set to deny. Pistons are not able to "break" the blocks by moving them while build is disabled. But if you are in a spawn you want build disabled