The piston isn't being powered and it is pushing. No block around it, including diagonal, and it's just these pistons.
Updated version of https://bugs.mojang.com/browse/MC-120182. <-- I only use OptiFine for smoother framerate, but I disabled it this time
MC-120191
Remote Piston Powering
Resolved
Duplicate
0
OPwrecker
(Unassigned)
Unconfirmed
Minecraft 1.12.1
Retrieved
Thank you for your report!
However, this issue is a Duplicate of MC-108.
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