Xbox Blu-ray Player app no longer plays 4K/UHD discs

Are you playing these movies from a 4k UHD Blu Ray or streaming service? If from disk, have you updated the Blu Ray player app on the Xbox?

I am having the exact same problem. With HDR enabled, my 4K UHD version of the Revenant has stuttering and dropped frames. With HDR disabled, it plays flawlessly. Auto brightening is off, I don't have 50hz enabled (it's grayed out). I do have 24Hz enabled.
Disabling 24Hz, with HDR enabled, creates a washed out, almost colorless picture.

Also, I have tried two different brand new 4k UHD Blu-Ray Revenant discs (first one was exchanged at the store). My XBox Blu-Ray player plays standard Blu-Rays flawlessly, with HDR enabled, with no stuttering. So, it's not the player, and it's not the disc.
The problem occurs playing 4K UHD Blu-Rays, with HDR enabled. I also have the latest version of the app, and my Vizio P55-C1 firmware is up to date (it updates automatically).

Hey there ricedemon,

That's an odd issue for sure, one that we've not seen with 4K UHD discs. Which Blu-ray title are you playing that you're seeing this issue? To clarify, are you sure that you're using the 4K UHD disc and not the Standard Blu-ray? Can you share a picture of
the disc as well? Does the issue happen with all 4k UHD discs you try.

Let us know!

Im playing from the 4k uhd player in the xbox one x

The blu ray player is up to date yeah

It's normal unfortunately 4k uhd discs have to spin faster than normal blu ray so the noise is the disc drive most of the 4k uhd blu ray players have a similar problem it's infuriating during quite scenes.

You can either put your xbox in a cabinet to reduce the noise or I bought a pioneer udp lx 500 as the disc drives are soundproofed but there hefty and there not cheap but they do have a noticeably better picture than the xbox one x.