Not sure how to diagnose this issue but as of today I can't get my chromecast or CC audio to stream from plex, everything else i use (Netflix, Youtube, Twitch, Googe play music etc) all have no issues. Did something happen or is this just me?
I'm running the new Beta version of plex with DVR support, but I've been running it for 2 days now yesterday casting worked fine.
Also just to test I rolled back my plex install to the current Plex Pass version and had the same issue.