The previous password history is not visible in 1PasswordX (and also 1Password Mac beta).
This caused me to end up having to do a password reset on an account when attempting to update a password (where the password change workflow required both old and new passwords at once) because the new password had been saved within 1Password (but not on the site), and the old password was no longer available...
Its not a usual problem to run into but a complete pain when it does happen. I have now found you can get the password history on the main 1Password web interface, but...
1Password Version: 1Password 7 Version 7.7.BETA-8 (70700008) 1Passwor
Extension Version: 1.22.1
OS Version: OS X 10.15.6
Sync Type: Not Provided