All other apps are producing sound. Windows 10 Settings show that volume is high for everything. The tune starts playing, the measure indicator progresses, but no sound. I have not reset any sound options. But my display screen is my first - and last, "touch" screen.

BIAB sound had been working. Sometime when I used the "next tune" option the sound disappeared. I then selected "previous tune", then selected "next tune" and everything started working right.

Now no sound.