[FFmpeg] [ERROR] [tls @ 0x82abd060] The certificate’s owner does not match hostname [plex1.MYDOMAIN.com](http://plex1.mydomain.com/)
Errors like this tend to indicate a custom certificate or a custom URL. Our certificate won’t match a custom URL so that would explain the SSL failure. In the new player as we now validate SSL on playback connections, the old player didn’t validate the certificate/hostname, so seems something isn’t quite right there. We’ll discuss internally how best to handle these while maintaining the best user security we can. 
You can also try adding the domain into Custom certificate domain in the Server settings under `Network (you’ll need to enable advanced settings).
