I've attached a scan (.jpg) to a Passport card using my 1Password for Mac...
... then after sync I could see this scan using my 1Password for iPad.
But I had attached the wrong scan, so I've deleted the scan as attached piece using my 1Password for Mac ...
... then attached the good one.
After sync, I could see in my 1Password for iPad 2 scan (the old AND the new) instead of only the new one !