Linux Core (virtualized)
Ubiquiti UniFi Switches and Access Point
Native Roon Endpoints
On iPad OS using iPad Pro M1 latest software (also able to reproduce on iOS), while on the queue list, favoriting a track via the heart button does perform the desired action, however the “heart” doesn’t reflect the new favorite designation. The heart fills in for a split second but returns to unfilled shortly after. I’ve had this issue for a few years and it figured I’d flag it since it has not been fixed in many releases.