I have PMS installed on my Win 7 PC, along with Chrome + Google Cast extension. I have a Chromecast audio connect to some speakers.
If I start a song playing in Plex on the PC and then attempt to cast it, it stops playing on the PC but no sound comes out the Chromecast's speakers. I only hear the connection sound when initially connecting to the Chromecast Audio. There are no error messages. The Google Cast extension shows that casting is active (i.e. "Plex playing on ") but there's no sign that PMS is actually playing the track (i.e, in the PMS UI the progress bar is at zero).
If I click "Stop casting" then the song starts playing on the PC again.
My Chromecast Audio works fine when I cast from the Plex Android app from my phone or my tab. It also works fine when I cast a Youtube music from a Chrome tab on my PC.
Have you any idea what goes wrong with my Chromecast Audio and my PMS ?