Setting volume of Google Home

I've noticed the exact same thing on my Google Home Speakers lately (it was working fine before July 3rd).
But you have to be fast because mediasource does not stays on Hubitat for long.

Also I found it strange that now we must send a speak command before we can adjust the volume...a bug in the latest firmwares?

Anyone knows how to make Hubitat permanent for mediasource? (Initialize does not work and Speak
only makes it VERY temporary)

P.S. The setvolume works fine on my Google Hub (Chromecast Video). No need to send a Speak command.