@Ron_Compton, I movoed your post to the Support category. Did you try to reinstall Roon from a Time Machine backup somewhere in you Ventura upgrade process? Roon cannot be recovered, or recovered easily, from a Time Machine backup, these posts are examples of the issues seen and Roon’s recommendations to perform a fresh install and recover from a backup made from within Roon:
Do you have any backups created from within Roon under Settings → Backups?