I am using Roon Rock on a NUC as the core server in a system with a Linn DSM and a NAS for two channel music.
Today, I added a second NUC Roon ROCK as an end point to take an HDMI multi channel output to a Marantz surround reciever in another room. At first everything work fine and I got full surround 5.1 from flac files on my NAS. However, I have subsequently lost the option to set the output to 5.1 because the Channel Layout option has disappeared from all Audio Settings for all output devices. At first it appeared greyed out on the control on my iphone for the HDMI output of the Roon ROCK endpoint and I could access on it a Windows PC, but now it’s gone completely.
Is it possible I could have inadvertently changed some global setting somewhere to cause this? I’ll be very grateful for assistance. Many thanks.