Here’s a phenomenon I noticed several weeks ago, and it still exists today:
I’m using 1Password 6 standalone version 6.8.9 on macOS Mojave (but the same problem existed under High Sierra) and the latest version of 1Password on iOS on an iPhone X. Sync happens through Dropbox.
When I modify the password for a login in 1Password on my Mac, then leave the “edit” mode, wait for the change to sync with Dropbox, and then open 1Password on my iPhone, the change I just made on the Mac gets overwritten with the old 1Password entry on the iPhone. This happens even when I don’t go to the entry on the phone immediately but first go to
Settings --> Sync --> Sync now, and then go to the entry. And it happens regardless of whether I close 1Password on the Mac or keep it open. In fact, when I keep it open while opening 1Password on my iPhone, I can see the entry being overwritten on my Mac right in front of my eyes.
However, when I change the password on the Mac while 1Password is open on my iPhone, then the old entry on the iPhone gets replaced properly. But this scenario is, of course, very rare in real life.
If it weren’t for the “Show previously used passwords” button in 1Password on the Mac, I would have lost the newly created password. This happens reproducibly, and I don’t know why 1Password/Dropbox doesn’t seem to recognize that the entry on the Mac is newer than the one on the iPhone.
Similar situation with notes: I just added a note to a 1PW login on the Mac, and the moment I opened 1PW on my iPhone, a notification from Dropbox appeared on my Mac, saying that I have added a “conflicting copy” of band so-and-so to Dropbox. Same with the username: when I change it on the Mac and then open my iPhone, it creates a conflict copy and 1PW adds a “Conflicts” section to the login that has the new username in there, while the main username field gets overwritten with the old one. I haven’t tested the other login fields, like URLs, etc., and all the field in the various other entry categories in 1PW (bank accounts, memberships, servers, software licenses, secure notes, etc.).
If anybody else happens to be in this situation, here’s a tip: there’s a “Previously used passwords” button in 1PW on your Mac that allows you to recover overwritten passwords. (You can do this in the iOS version, too, but I haven’t verified yet that the overwritten passwords are on iOS as well.)
I had opened a support ticket with 1PW, and they took 1.5 months (!) to get back to me. They referred me to a generic article on how to set up Dropbox sync with 1PW and then wrote:
“Any other syncing issue that’s beyond the scope of the article is beyond our control.”
I have used 1Password for over a decade without major problems, but this does concern me.
Would be interested to learn if this is an absolute fringe case or more widespread.