New Problem launching Roon

[xxx (Banned - toxicity)]

Selecting ‘Use this Mac’ is the standard solution for the bug you’re encountering.

Here’s a blessing from Roon support -

Roon core is not working

Hello @Michel_Obrien, these guys have the right idea. Please try the “use this mac” option and when told to unauthorized your previous core, do that.

@Jack_Cobetto

same tags that I have created over the last year. I don’t want to lose those.

You run Roon Backups, right? If not, then that should be the first thing you setup when you get Core back.