PetNanoFerret

Hey all, I know I'm late to this party.. But having similar issues with my M87. LEDs all light up for several minutes then drop one by one after several minutes. In my case, however, I do have output signal. But tone/function of pedal is unpredictable and changes the longer it's on. I did continuity test with the ratio switch and it appears that one side of the switch is working normally but the other side seems to be non-functional/not connecting the poles (pic attached). Is this similar to the issue others were having with the switch? If the switch is truly fried though, not sure how I would have output signal (but I'm not familiar enough with the circuit to know definitively). Let me know if you have any insight. I did find the exact replacement switch through Small Bear Electronics (US) and am confident enough in my soldering skills so if you think putting the switch might fix this, I'll go ahead and try. Pedal isn't very usable in this condition. Thanks