After Upgrading to Catalina I can't edit or save Contacts
I upgraded one of our Macs to Catalina and now you can't edit or save a contact. I have trashed the Contacts preferences and it is not linked to iCloud.
If you don't import the original contacts you can add and edit contacts. As soon as you import the old contacts it doesn't work any longer.
I did not have this issue on any of the other macs that I updated.
Any help would be appreciated.
iMac 27", macOS 10.15