AppleTV no longer uses the sound from Pioneer AVR SC-LX801. TV is Sony Bravia.
when I turned on Apple TV, the Sony would automatically switch to the correct HDMI input and I could get sound from the AVR by switching to TV from CBL-SAT.
Then something happened, and I can only get sound from the TV speakers and not my home audio speakers.
I have tried changing settings on the Sony TV and Apple TV.
one first question, was there an update from Apple TV? All devices say software is up to date
Apple TV 4K (2nd generation)