My Sea Horse's rate isn't working. Just sounds like a glorified delay pedal currently. What's weird, is that if I connect 1 and 2 of the Rate knob, it works intermittently with the LED rate flashing until it goes dim at the halfway point and less. All components check out fine, I've switched out the chips with other chips, and pots with other pots and can't figure out for the life of me why this is happening. Any ideas?