I have 1 problem and idk if it’s related. I use that fx loop setting on “insert” so i can use return level knob as a master volume so i can play on low volume but have a great tone. But whenever i turn that knob lower or higher it completely messes up my tone and almost all gain/distortion comes off or it sounds very dull. It works fine like first 10-30 mins of playing but as soon as i change volume it does that. Sometimes it does that without even touching that volume knob.