phenphen

In my base, I have a LG OLED C2 65" 2023 version. I have hooked up the TV ARC to a SONOS ARC soundbar, and I can't successful use any (brand) BT headphone.. I could "pair" the BT headphones, and the menu said that the device is "connected", but as soon as you start play the content, it automatically switch back to the SONOS ARC.. So I did a bit of trouble shooting, and if I were to disconnect the SONOS ARC from the TV, then the BT headphone works perfect on the same media context (e.g. movie/netflix etc). So there is a "priority" somehow made in the webOS to always use the TV ARC if it is "hooked" up, over any "connected/paired" devices... Kinda of wired way to force user for this setup, UNLESS there is a hidden option somewhere in the menu that I did not know... Anyone has any clue on this "hidden option" (if it exists)?