I've run into an issue where I am no longer able to cast from my TV Shows library to Chromecast. This started about three days ago. I have tried casting from two different Android phones and from the Chrome browser on my laptop. Each time, the TV briefly flashes 'Unable to cast' and returns to the media preview. I was able to cast from my music and movies libraries successfully, but no TV shows will work. The videos will play on Plex if it is not casting.
I have attempted the following: verify Plex is updated on the server, restart Plex service, restart server, reinstall Plex app on phone, factory reset Chromecast, and delete and recreate the TV Shows library. There has been no change in being unable to play the videos.
Does anyone have an idea as to what might be going on? I have not made any changes to my configurations prior to this happening.