I had a double pistons extender. (see picture) I pressed the button and I expected the piston underneath the block to extend.
Instead the other piston extended.
How to reproduce:
1. build the setup
2. press the button
3. Notice that the other piston extends
Duplicate of MC-9341, please use the search function to see if your bug has already been submitted. Currently over 51% of tickets are being closed as duplicate.