Mediaplayer widget play/pause not working


I have five Sonos entities which are working perfectly within Lovelace, but somehow when I use the standard widget in Appdaemon the play/pause is not responding (volume increase/decrease works and also displaying and detecting when playing is). Could be that is is caused by having the speakers grouped, but also seems to happen when not grouped.

Anybody know what could cause this?

Do you see any errors in the appdaemon or HA logs? Any errors or warnings in the browser javascript console?

Nothing in either log. I have restarted appdaemon once again, although it has quite a delay with play and pause it is working now. Strange, let’s see if it keeps on working.