Trying to play Lucy 4k UHD blue ray on xbox one S with ks8000. Pressing in on right thumb stick while movie is playing shows 1080p. Any ideas why it's not playing in 4k? Xbox is connected directly by hdmi to the TV. I've tried ports 1 and 4 on the ks8000, still shows 1080p on the xb1. All settings in xbox one S are set for being able to display 4k. UHD color set to on within ks8000 menu for all 4 ports. Using HDMI cable that came with the xb1 S.