I just added a Sonore Micro-Rendu to my network. I see the Rendu as a zone in ROON but when I choose the Rendu as the zone the music still plays on my other zone…
Switching the Roon GUI from one zone to another does not affect any already queued music.
Music that has already been queue up will continue to play in its original zone (though it can be transferred to another zone if required).
New music queued up will go into the zone queue for the zone that the remote is controlling at that time.
See Roon Knowledge Base and search for “transfer zone”.