Why do I have white dots on my screen when I enable HDR on a 4K HDR TV

I purchased a 4K HDR Sony XBR television. I hooked up my X Box One S to it and it runs 4K HDR content without a problem.

My PS4 Pro only runs 2160P YUV resolution and when HDR is turned on, there are scattered blinking dots throughout the screen. I still play games but my God this is annoying. I have tried new cables, new firmware on all devices, rebooting it etc. The dots disappear when I select 1080P resolution but I didn't buy a PS4 Pro or a new TV to game in 1080P resolution.

Is this a problem with the PS4? If so it is a software problem or does it need to be repaired?