updated to sonoma, Contacts dropped some of my cards, cannot add new list

extradog wrote:

can add new cards

If you are using iCloud >Contacts sync —try turning off and compare your results locally.

The next trouble shooting step would be to sign out of AppleID/iCloud and test locally your Contacts.app

before you sign back in and test.

>System Settings>iCloud/iCLoudDrive

ref: Sign in or out of your Apple ID on Mac