Update: I’m not sure how or why, but when I plugged in the pedal this morning (out of enclosure) the effect worked. Very dark tone, but at least it was a start. When I put the PCB into the top of the enclosure, it went back to my original problem of just bypass tone, whether the effect was engaged or not. Also, I am not hearing the relay click now with the PCB in the enclosure. Kind of weird.