Go to your Nucleus or ROCK Database Location via another PC on the network – instructions
Go to Database/Registry/Core
Delete the file called bits
Database
folder, locate the following folder: /Registry/Corebits
:Close out of the Roon app and RoonServer app (if in use) in the system tray
Locate your Roon or RoonServer Database
Open Finder and click Go in the top bar
Hold down the Option key (or Alt)(⌥) to unhide the Library folder
Click the Library folder
Find and open the RoonServer or Roon folder, depending on which you are using on your Mac. This is your Roon Database.
In the Database
folder, locate the following folder: Registry/Core
Delete the file called bits
Start Roon or RoonServer again