I’m sorry for the trouble. That sounds frustrating. I don’t know what is going on, but I do know this bug has been fixed, so I’m not sure why it’s not working for you. It sounds like the pedal is not changing channels for some reason. I’m not sure what to tell you about this other than to make sure you really are in calibration mode when you send the midi packet (test this by playing with the MIX knob and seeing if it responds the way described on page 11 of the owners manual). Also make sure you are sending only on channel 2, which I’m sure you probably are.