Mr. Potato has been playing fine, played it earlier, then 30min later went to a rehearsal studio where I plugged into a mark bass combo and..... No sound...... then a pop.... then more silence....No matter what no sound from Mr. Potato. The man running the studio helped me look at the combo, the cable, Mr. Potato, and we didn't see anything out of place. Combo was outputting and receiving signal, changed cables, changed 9v in Mr. Potato. So we plugged in an Epiphone Thunderbird, and at first, no sound, but then after a few seconds the sound was fine.. mostly.. there were a couple times when I would turn the combo off or turn down, where when I turned back up it wouldn't quite have the full tone for a few seconds. I tried to plug Mr. Potato in again and it had a very faint noise like it was trying but no cigar. Brought it back home and confirmed Mr. Potato is not outputting signal any longer. Did the Mark bass combo do something to Mr. Potato, or am I tripping???