I can’t get any sound to play to the Sonos Arc bar from an Apple TV 4K. The Apple TV is connected via newer hdmi cord to the hdmi on LG tv and the Sonos Arc bar is connected to the earc port on the LG TV. Apps on the LG TV play but the Apple TV 4K I don’t get any audio. I tried switching out hdmi cables but that unfortunately didn’t work. Any ideas what could be causing this?