I just completed two builds, - the Promethium, which works, and the Dark Rift, which does not. The LED lights up and the bypass works as it should. But that is about it. The only effect it seems to make is a chirping sound, which I can slow down or speed up with the rate knob. But no "delay" effect. I've checked my wiring and soldering and can't see anything that stands out. Could it be one of the ICs?