Plex is having some serious issues if it isn’t streaming from the web app. The web app will select 1080p no problem on my Pixelbook. However, Plex is transcoding 4k content (video, audio, and container) down to 1080p instead of using the second file associated with the movie. The second file is a perfectly compatible file for video and audio, worst case a container transcode is needed.
I have the latest beta installed, but this seems to have been an issue before the last update anyway.
Plex is supposed to automagically select the most appropriate file format for the player. It is not doing so on at least two Samsung TVs and a Playstation 4.
Bug?