I decided to enable diagnostics and here is what I found. A log completely full of dropbox error messages!
The article I provided above should help with getting you back into Roon and leave you with the ability to address the drop box errors. It should also provide the information you need to bypass and restore a backup.
Errors like the one you’ve seen now are signs of low-level corruption in the database. This means that the records Roon is reading from your database are different from what was originally written. This can happen for a number of reasons, like failing hard drives or an unstable power source (frequent outages, hard power cuts, etc).
We’re sorry you’re experiencing this extremely rare error: not only is our database infrastructure designed specifically to prevent this type of corruption, but starting with Build 880, Roon detects database corruption “on the fly”. So if corruption is detected during a backup or during normal use of Roon, you’ll be immediately prompted to restore from a backup.
What’s Next?
Install Roon fresh on your Core machine and roll back to one of your older backups. You can use these instructions to do so: