Hey @Wilfrid_Russodivito I can’t thank you enough for your patience while we worked to respond to your message. Thank you for letting us know of the issues you’re experiencing.
Could you please provide us with a screenshot of what you see when Roon re-scans your library? Additionally, it’d be helpful to know more about your setup. Could you please provide a brief description of your current setup using this link as a guide?
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.
Regarding the remote reconnecting when switching between applications - this is expected behavior, especially with iOS devices. The Roon remote will need to re-establish a connection with the Core each time that you exit out of the application.