and download the latest available version of Roon (in your case it is mac as we suppose).
Then make a backup of your current installation (as a safety measure) and just replace in your Applications folder old Roon App with the newly downloaded version.
Everything seems perfect with the new installation from the Roon website. Thanks
Edit : It also seems to me that this has fixed a proxy issue (but I’m not sure if the app was the cause: I’ve made a lot of changes to my switches and docks over the past week).