Pistons not working on one-tick-pulses

The bug

I tried to power a piston using a one-tick-pulse and it didn't work. In front of the pistons are no blocks or entities, but it still wont work. If I add a normal repeater, it works. I used a block on top of a piston as a monostable circuit and took a redstone output, going directly into the piston. I tried it in different worlds in different locations.