Listening Mode Behavior Question

PowerNode N331, Windows 11 controller.

Sources               Listening Mode Setting
Analog                  Music                                  nothing connected
Optical                  TV                                       Panasonic TV
HDMI ARC            Music                                  AppleTV
USB C                   Music                                 USB Stick

*No Center Channel speakers.
*Subwoofer not connected

Scenario:
1. Everything off, PowerNode sleeping.

2. When I turn on the TV, the PowerNode is awakened, Listening Mode switches to TV, as expected.  TV audio plays through the speakers via fiber optic.  (I could never get ARC/eARC to work.)

3. Turn off the TV.  

4. At any time later when I fire up the Win11 app and click on QoBuz for example, Listening Mode remains stuck on TV.  Listening Mode will remain as 'TV' until such time as I manually click Settings -> Audio -> Listening Mode and click 'Music'.

Q: How do I make the PowerNode/BluOS revert to Listening Mode = Music when A) the TV is powered off and B) a PowerNode Music Service is selected?

Thanks in advance for any ideas or suggestions.

Best regards,
Lew