Casting Netflix and Disney+ from my Chromecast to the TV produces no sound when the Samsung 7.1 Home Theatre System (HT-E6750W) is on.
When it is off, the audio works from the TV Speakers (Hisense 75P8). Home Theatre sound works for casting Youtube etc from Chromecast, it's only Netflix and Disney+ that has no sound. Video works fine.
Anyone know how to fix this?
I had the same issue with Disney+. For me it was related to HDR support - it's not available in some clients.