I have a Sonos Arc connected via eARC to my TV. I was using “passthrough” on my Samsung Q85T TV instead of “auto” as it was giving the best audio outputs. However, it has now randomly removed the “passthrough” option on my TV and will only allow “auto” or “PCM”, which gives poorer audio - any idea why or how to fix? Should note that this is the case using the built in Netflix/Prime etc apps.