Why are my Contacts blank after importing .abbu file on Monterey?
I'm trying to load my contacts archive (.abbu file) after changing my computer and updating to Monterey, but nothing happens. Whenever I select File > Import > Contacts...abbu, etc. I get the usual 'are you sure' message. However, I select yes import and my Contacts stay blank (which is most useful).
Has anyone got any suggestions, as it's always worked in the past on previous OS (High Sierra was the last time I tried).
[Re-Titled by Moderator]
MacBook Pro 13″, macOS 12.6