Autofill username+password not working for Aetna when visiting via www.aetna.com

Issue: Autofill not working for Aetna member login site. Have to manually copy and paste username, then copy and paste password.

Steps to reproduce:
1. Tested on Chrome Version 108.0.5359.125 (Official Build) (64-bit) and also Vivaldi 5.6.2867.50 (Stable channel) (64-bit),
2. Visit https://www.aetna.com/
3. Click "Member login" in top right
4. Click "Login" in center of page
5. Note you're now at a page with a crazy-long URL like https://www.aetna.com/AccountManagerV3/v/login?identityTransaction=xxxxxxxxxxxxxxxxxxxxxxx&appname=NAV&branding=&skin=&language=&channel=web
6. Note the popup that www.aetna.com wants to know your location. Ignore it.
7. Try clicking the Autofill icon in the username field. Nothing happens.
8. Try clicking the Autofill icon in the password field. Nothing happens.
9. Try clicking the 1Password button in the toolbar, then clicking "Autofill" next to the Aetna login. Nothing happens.

Simpler steps where the autofill DOES work normally, which makes it even more mysterious to me:
1. Open a private window (Ctrl+Shift+N).
2. Go directly to https://member.aetna.com/appConfig/login/login.fcc (this is the URL on the "Aetna" logo at the top of the login page)
3. After it redirects to the crazy-long URL, again ignore the location request popup.
4. Autofill works normally.

Side note: When password is 20 characters, Aetna's website shows an error that password must not be greater than 20 characters. But it accepts the 20-character password just fine, so it's just a nuisance error.


1Password Version: 1Password for Windows 8.9.10 (80910043)
Extension Version: 2.5.1, 2.5.1
OS Version: Win10 22H2
Browser:_ Chrome, Vivaldi

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