Hi, there. I played BIAB tonight and I couldn't get any sound out of the melody track on any tune. The melody would register on the screen, the bouncing red notes of the melody, but no sound. It's worked perfectly fine for many, many years prior to this. Oh, I was able to get the melody to play when I pulled up the guitar fretboard and forwarded note by note through the melody, but not when generating the entire song. Any idea what might have happened? Any help would be greatly appreciated. Thank you!

Michael