On specific sites, such as accounts.google.com, the 1Password button on input fields is not actionable. The easiest way to reproduce this is to lock the extension, go to the site, and try to click on the button to get the "Please unlock 1Password..." dialog to appear. This works on other sites, as well as the same problematic site on the desktop browser extension.
1Password Version: 7.9.3
Extension Version: Not Provided
OS Version: Not Provided