Is any other stadia pro subscribers having issues with 4K resolution and HDR not being available. I own a LG 55in 4k UHD tv model 55UJ6300 that supports 4k resolution and HDR. Up until recently I had my account set to play in 4k, but now it dropped down 1080p and says my TV doesn't support 4k or HDR. I am really confused as to why, this is happening.
Apparently there is a issue running everything through the sound bar instead of running the chromecast through you arc HDMI port (if you have one) and then running the surround sound through the normal HDMI. So there's that work around or if you so feel inclined you can talk to the manufacturer of your surround sound system.
I don't know at the moment I know chromecast goes in to hdmi1 on the tv wich is toshiba but I dont know more than that