Extension does not appear 1Password for Mac 8.2.2 + 1Password for Safari 2.1.3 (20182)

I am having the same problem with the 1Password Extension (2.1.3 (20182)) not showing at all in Safari 15.0. I've uninstalled 1Password 8 (80400010) and the 1Password Safari Extension app several times. Once the 1Password Safari Extension app is launched, nothing happens if you click the Open Safari Preferences button. Assuming it's either a minor glitch in the new extension app or Safari 15.0.