@support I was having good luck with multiple zones in Chromecast, but after the latest update my Riva Arena (with Chromecast built in) will no longer play in groups (though it will play if I choose it as an individual zone).
My setup is a Mac Mini as core running OS X high Sierra, a synology NAS, an Allo Audio USBridge, and multiple Chromecast through the house.
Things I’ve tried: rebooting my router, restarting Roon, disabling and enabling zones, factory reset of the Riva Arena, disabling and regrouping zones in Google Home. Any ideas?
Thanks,
David