I have the stand-alone version of 1PW and just updated this morning to version 7.4.4 as suggested by a pop-up.
Doing so broke both Firefox and Safari extensions, which I was sort of able to fix via your support forum. But I can only copy/paste passwords from the extensions.
The App doesn't work any better. There is no longer an auto-fill button, and each login page has a "read only" button at the top.
The keyboard shortcut command backslash no longer works either.
In short, the only option I have for filling passwords is copy/paste.
1Password Version: 7.4.4
Extension Version: 220.127.116.11
OS Version: 10.15.3
Sync Type: Dropbox
Referrer: forum-search:no autofiil option on 7.4.4