We didn't have any issues with some MMS-3e zones not working with Crestron Home.? But we found the Crestron Home interface to be clumsy at best.? In particular, instead of just having one source name for each MMS zone, Crestron home broke the Source into a Source for Spotify, another for Pandora, and so forth -- Made for a very confusion source select page and no way to jump between different media types once you selected one.? We also had issues with the MMS-3e locking up constantly where we eventually had to replace it with some Sonos equipment.
Also, we have had some reliability issues with the MMS-3e where the Main Zone would work but the Zone-A and Zone-B would disappear from all interfaces including the Mirage App.? Eventually the Main zone would stop working too.