Not sure I understand what you mean when you say pop up of USB mode. I’m not talking about when you first open up EDM a and it detects the pedal.

I was referring to the normal screen where you can see the knobs in the middle and the presets on the right. Sometimes if EDM detects a change has been made on the pedal it will give you a prompt up top in yellow asking to SAVE or CANCEL. Because it is in this mode, it won’t allow you to do anything, like change presets, until you press either SAVE or CANCEL.