I am having the SAME problem. I didn't even could create my preset. I just updated everything, and was so excited to test my new pedal, and it never had any sound. Until now! I just could have a sound for a while. I was creating my first preset, put my acoustic IR, my global EQ, my mic preamp... and when I was adjusting the compressor, it stopped again. No sound. I don't know what to do! If there's a problem with the unit itself, I'm screwed, because I live in Brazil, and it was imported... with a huge cost for me. I created a ticket about a day ago. I'm waiting for an answer. As soon as they talk to me I'll update you guys!