This is not a duplicate of MC-108. These are non-functioning pistons and have nothing to do with MC-108. Please reproduce the above situation and see for yourself. There is no reason why the piston should not retract when the block above it is changed from a redstone powered state to an unpowered state. There is no reason why piston functionality should differ when it's moved one block down a straight redstone line from a previous piston.
Jason Hochstedler
This is not a duplicate of MC-108. These are non-functioning pistons and have nothing to do with MC-108. Please reproduce the above situation and see for yourself. There is no reason why the piston should not retract when the block above it is changed from a redstone powered state to an unpowered state. There is no reason why piston functionality should differ when it's moved one block down a straight redstone line from a previous piston.