Sorry, I should have better avoided the term "whitepoint" in this context. What I meant was what you mentioned later, due to the wrong matrix the RGB values won't be quite correct, colors skewed, and white won't be white.
4kp50/60 output isn't implemented in this build, this is still in the queue (we tested an early patch a few weeks ago but it's not 100% there yet).
4kp50/60 HEVC decoding is more performant now, so 1080p50/60 output of such files will be a lot better (previously the decoder couldn't keep up resulting in a/v sync drifting away). These optimizations are still WIP but testing showed it's already mostly working fine.
I can't seem to download this file is it offlilne?
Would like to test HDR on my RPi 4.
And are you guys able to run HDR content on Plex together with subtitles turned on?