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Bah! :mad: I don't see a way around this other than a manual export and import like I described. Maybe somebody else will chime in with a better idea.

Ok, I fixed it.
What I somehow missed was iCloud Groups etc occur straight after the On My Mac list. By deleting all the On My Mac cards plus all the groups, the iCloud Groups came into view, and all the Birthday duplicates are correct.

I have no idea how I could have missed the second list of Groups, unless it only synced/appeaded overnight :confused:

But all fixed!
 
Ok, I fixed it.
What I somehow missed was iCloud Groups etc occur straight after the On My Mac list. By deleting all the On My Mac cards plus all the groups, the iCloud Groups came into view, and all the Birthday duplicates are correct.

I have no idea how I could have missed the second list of Groups, unless it only synced/appeaded overnight :confused:

But all fixed!

Good news. :)

Don't feel bad. I went around and around for two days with my contacts when I switched to iCloud.
 
The problem

The problem with deleting everything from "On My Mac" is that you use Google Sync. Linked cards are the only way to sync between iCloud and Google. Nevertheless, they produce duplicate Birthdays.

Sounds like a bug. I've reported it to Apple. FWIW.:cool:
 
pathetic

I can't believe Apple can't make this icloud stuff work. When I first installed icloud, I had a huge headache with duplicate calendar appointments. Now with mountain lion, I had to delete all the duplicate contacts (and groups) on my mac. Pathetic.
 
correct.

but my point is, I shouldn't have to do anything to fix dupblicate contacts when upgrading to the new OS.
 
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