I am running El Capitan, Safari, and the latest 1Password extension, 4.5.3. After I haven't accessed any sites and used autofill for roughly 12 hours or more, when I try to autofill, it doesn't find the entry for that site. The extension is loaded, and mini is running, and it's unlocked. However, the pop-up just has the standard "Favorites", "Password generator", etc. If I quit Safari, and then start it again, it solves the problem. I have uninstalled and reinstalled the extension. I have rebooted. I have disabled the other extensions, but this problem keeps happening. This is not happening on a different Mac running the same software, so it's puzzling.
1Password Version: 6.0.2
Extension Version: 4.5.3
OS Version: OS X 10.11.3
Sync Type: Dropbox
Referrer: kb-search:problems with safari extension