I noticed aslight pop using edit the other day turning a stomp off and on ..so I did a factory rest on my amp (holding A down and turning on then following prompts) ...only time I've ever noticed pop was using edit.

Anyway reset seemed to work it got rid of popping but I haven't had a chance to check everything out to make sure all is well ..I'll double check tomorrow night when I have more time got too much to do tonight.