4K UHD Blu Ray Pixelated artifacting with xbox series x

Those look like bad discs. There I’ve been reported problems with recent Warner Bros. this cinema what those feel more like authentication error, this is reading like defects.

Please try other 4K BD or at least other discs in the set

"Ultra HD" Blu-Rays will play in 4K. Standard Blu-Rays will play in 1080p.

The Xbox One S will only output to the highest resolution offered by the Blu-Ray disc it plays.

I suppose this design choice was in mind because 4K/UHD-TVs already process and upscale a lower resolution image to "cleanly" use all of the 3840x2160 pixels, so it's not putting unnecessary load on the Xbox One S CPU.

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

The blu ray player is up to date yeah

To be fair, on the Xbox Series X official page, there is no mention of 3D so it can't be expected:

"Optical Drive. 4K UHD Blu-Ray"

As to not having a state of the art player, not surprised there either....a £450 ($500) console is not expected to have a blu-ray player that would cost probably £200 standalone

It seems to be a common problem with certain 4K UHD Blue Ray disks on the Xbox One and Series X.

My Xbox One X refuses to play certain 4K UHD Blue Ray disks as well and I know it's not the disks that's causing the problem as they play on my stand alone 4K Blue Ray player.