Perhaps a bug for group zones playback - volume change on a display does the wrong endpoint

[Nathan_Wilkes]

My recollection is that the “primary” zone is controlled and not the additional grouped zones. There has been some prior threads about this I think, including:

Ropieee remote control volume of grouped zone

I have just added an OSMC remote to a RPi that is part of a group of 3 RPi endpoints. The remote works to play/pause/skip track of the entire zone, however the volume adjusts only the volume of the RPi the OSMC dongle is attached to, not the volume of all 3 RPi’s in the zone. Is this the expected behaviour? I would love for the volume change to adjust the volume of all 3 endpoints in the group.