Observers don't detect retracting sticky pistons. However they do detect retracting normal pistons.
How to replicate:
Upon retraction of the sticky piston, the lamp isn't powered. When the normal piston is retracted the lamp is powered.
[media]
MC-134298
Observers don't detect retracting sticky pistons
Resolved
Fixed
27
I didn't believe this at first, but I can confirm that this bug exists