I just got the EV1 pedal and I'm watching youtube videos on setting it up for wah and/or whammy. I have it plugged in via trs cable to the pedal 1 port on my mfc, but unfortunately when I use the pedal, the only thing affected is volume. I don't have a volume block set up. Is there something I'm missing or could change so it doesn't affect only volume and not wah or whammy?