Hi! I am having the same issue. Does anybody have an update regarding the 210 Streamer recognizing MQA over mConnect/Tidal Masters (HIFI plus) using uPnP?
By the way, I did two tests where MQA worked fine:
1. mConnect/Tidal Masters (HIFI plus) -> HiBy R3 over uPnP
2. Stream local MQA file from NAS Synology DS216play -> 210 Streamer

So, I also guess it should be fixed on streamer side (Meridian)...

Rookee78