iTunes volume for AirPlay 2 issue

I'm currently running macOS 10.14 beta 9 and iTunes 12.9.0.164. I have a Sonos Play5 and using iTunes to stream music to it with AirPlay2. The music streams from iTunes but I can not control the volume from iTunes. I need to use the Sonos App on the iMac to actually control the volume. Defeats the purpose of using AirPlay2 from iTunes. Any one else experiencing this?

Replies

No Problem here, can adjust all Volume-Levels on my HomePods and ATVs without any Problems.

Only Thing, that i have noticed is a Difference between my Mediafiles (Mediathek) and Apple Music Radio Channels. (these are louder).

I have to readjust the Volume on my Mac.