It used to work. Seems like this is new with 1.6. Can play neither local or Tidal files. Play:5 speaker works fine with Spotify and in the Sonos system
Sonos Play:5 1 speaker on Sonos net
Sonos boost ethernet connected to garden variety ATT uVerse modem/router
Roon core on i7 HP laptop, ethernet over power to Node 2. That is working fine too.
Re-boot of Sonos doesn’t cure the problem. I have 2 devices that roon can see, 3 if you count the iPad remote. No grouped players