Dialog doesn't always detect audio coming into Toslink

[Johnnydev]

I have a optical going out of my tv to the dialog that is set to switch when audio is detected but on a weekly basis I have to launch the app and select that specific optical to get it going even though ti was never switched off.

Any ideas on how I can persistently keep it on that optical so it stops switching it off and not selecting anything to play?

You can Try a complete factory reset