If I run Roon now, after the latest update, with the Sooloos MC200 core running. The zones disappear from Sooloos and are found in Roon including the MC200.

This then plays perfectly.

After I shut down Roon, all the zones are back on my Core control app and play perfectly.

It looks like only one system can have the zones at a time and Roon overrides Sooloos.

I have not had to reboot any Sooloos components as yet.

My music for each system is on different drives. TwinStore for Sooloos and an Icey box USB 3 to laptop for Roon.

Hope this helps. Chris smile

No 18 in the Hall of fame smile I have simple tastes; I am content to settle for the best:
GIK monster bass panels, rear wall. QNAP TVS 471i3. Roon into DSP5200SE via 210/ 218 zone... Explorer 2. Bluesound Pulse 2, Mini & Flex. 596v1, 518, Foxsat HD, Sony BDP, Pioneer 5090, 2 Chromecast's for LRB videos. MS200 to F80 for a Roon zone