No PSG subtitles with HDR

[tom80H]

This is a known issue which is also listed in the official beta announcement. HDR videos are not yet using the new player:

Early access for Plex Pass users to new Apple TV & iOS Video Player

We’re introducing a great upgrade in terms of video playback experience to our iOS and Apple TV apps! Up until now, we relied on Apple’s AVPlayer for video playback. That was a simple solution, but very limited in many aspects. However, now we’ve added support for mpv: the same higher-quality video player we have in Plex Media Player, that will result in sharper video output and improved subtitle support. The new player is still experimental, and we do plan to make it available to everyone, but…