Lose Cast Devices on Upgrade

[welshman]

I'm a novice user who has the Jellyfin server (Version: 10.8.13) on my desktop. I use it to stream onto my Samsung TV using the cast to device icon. Every time I upgrade to a newer version, when I try to cast, there are no devices available. Always had to re-install 10.8.13 to get it working. Is there a setting that has changed?