This happened today with my Double Muff and my Pro Junior (soon to be returned). I couldn't get any sound from the pedal but the amp was still working as normal. I then plugged the pedal adaptor into a wall unit, as I was using an a multi socket exstension. It worked fine after that, but I have some major issues with the Pro Junior though.
Are you sure you've turned it on properly? Plugged the right cables into the right sockets? Got a battery that works in it?
A dwarf might hear you. What then?

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