Playback issues, direct play just stops after a few seconds when playing HEVC on chromecast
I'm having some issues with playback on my chromecast ultra. I have the latest plex stable version, a chromecast ultra with latest firmware.
When I try to play a HEVC movie it starts playing for a few seconds, varying from 10 seconds to about 60 seconds and then it just stops. This happens on all my 4K HEVC HDR movies. If I play anything else (that I've tried so far) it works. If I force a transcode of the same movie it also works.
This started happening about a week or two ago, I'm not sure if it started happening after I updated plex media server.
I have tried starting the cast from my PC and from my Android phone but the same thing happens. I have reset my chromecast ultra and reinstalled plex media server but nothing works. I have also downloaded the latest git version of ffmpeg but can simply not figure out what is wrong.