Running the latest Sonos app (sadly) and decided to try to Airplay music to my Move 2 that was grouped with an Amp.  All worked ok, except the volume control only controlled the combined volume.  I had no ability to raise or lower the separate volumes of the Amp or Move 2 without physically using the controls on the devices.  I’m assuming this is yet another bug in the latest app?  Or maybe another “feature” that was left out and will be coming in a future release?