My wife and I have for the past year been using 1Password on 2 iPads, an iPhone and an Android tablet (1Password Reader)--and my wife will be purchasing 1Password for Mac today. All these devices sync only through Dropbox, all are updated to 1Password 4.2.1, and all had been syncing without any problem. For some unknown reason, however, a week or so ago Dropbox stopped syncing 1Password to and from my iPad and my wife's iPad.
Oddly, however, Dropbox still syncs my iPad with my Android tablet and Dropbox still syncs my wife's iPad with her iPhone. But as of a few days ago Dropbox for some reason suddenly stopped syncing 1Password between the two iPads. I tried turning Dropbox sync off and then on again in 1Password on both iPads. But after 1Password relinked with Dropbox on both iPads they still won't sync.
Your help would be appreciated.