I have an MXR Pre-amp that when turned off, has a weak signal coming out of the amp, but when engaged sounds completely normal. Anyone had the same problem before? It’s the only pedal I run through my amp at the moment, I’ve tried different cables, 9Vs, different amps. I feel like it has to do with the pedal for sure but I’m not too experienced in working with circuit boards. Any help would be great, see y’all on the stage!