Hey Chris ...before I shut it down I was playing guitar, everything was great, went to the bathroom, came back and nothing coming thru unless I hit the true bypass switch, then I get a clean signal, no effects at all, just clean....I checked the midi to make sure I had the loop and channel memorized, like I said all was good....and yes I checked the cables. I even shiut that amp down and fired up another amp thinking it could be my guitar, but that amp is working fine...on the f2, it just s a true bypass switch and does the looper, right...im lost
