Anyone else having their 4k setting revert back to 1080p?

I have noticed that since either the latest system update (or possibly Blu-ray app update), normal Blu-ray movies don't upscale to 4k anymore. They only stay at 1080p. I've tried everything, and it only stays at 1080p.

As soon as I go back to the dashboard or play games, it'll revert back to 4k. But as soon as I put a Blu-ray in, back to 1080p. And it was working beautifully before the last system update (the one that released on the 5th August), and Blu-rays all upscaled
to 4k.

This needs looking in to MS.

Thank you for the quick reply. I am using the HDMI 2.0 designated port (HDMI 1) as identified in the user's manual. Additionally, I am able to get 4k to display using a different 4k source with this same HDMI port.

One other note, when I enable 4K support in Xbox settings it switches to 4K, but when I say "yes" to keep the settings it reverts back to 1080p @60Hz every time.

I'm having a similar issue, my projector is getting 4k during game play but not when I put a 4k disc in, it's getting 1080p then. Is this happening with anyone else?

Hi

If your console is connected to a 4K HDR television and you have set the display output setting to 4K there is no need to change the setting on the console back to 1080p when playing non enhanced games.

I am dealing with the same issue. I get everything else in 4k but I pop in a standard blu ray and blinks back down to 1080p. I have yet to try and 4k movies.