@Joy_1P The same happens to me. Open website with login form in Google Chrome, it shows me 1password icon in username field and also shows me available logins for that page. I choose one but nothing happens. So I try to open 1password with cmd + x which i have to login with password first, which is weird because it shows me available login in that login field and also 1password is running on my mac (i have it in the top bar) - so I should be already authorized (only sometimes it wants password but not every time). Then I start to fill a password and out of nowhere - even I don't type the password at all, it logs me in and then the autofill starts working.
I think there is some, for me long, delay before it's possible to use autofill. This is very annoying behavior.