Right after I updated to the 2.01 beta, I played on a preset for a bit and then did something else while leaving the unit on. When I came back to it, there was no sound. I was using the headphone output. I switched to a couple other presets and still had no sound. It was showing normal signal on the input meter. I turned it off and back on and had sound again. It hasn't repeated yet, but I noticed a post in the FM3 forum which sounds very similar so I figured I'd post about it.