I have an MRX520 connected out of the HDMI1 (ARC) port to my Sony XBR65X900E HDMI3 (ARC) port. Whenever I turn on my TV, the reviever turns on as well because I have CEC switched on. I watch all my media on apps on this Android TV (no other devices connected). When I launch an app to watch something my home theater speakers do not work, it's all muted. So I go to the Android TV settings > speakers > switch to TV speakers and the audio comes out of the TV. Then switch back to Audio System and the home theater speakers work again.
I have to do this silly little switch back and forth every time the TV and receiver is powered on.
Anyone else experience this with their Anthem receiver?