Even going through this process:
- Open incognito chrome
- Log into my SE account using primary Gmail
- Sign out of Gmail
- Resign into other Gmail
- Attempt to change account via profile page
This results in being able to successfully click through the entire process but the new account is not listed on the page.
I have also tried the following, which has resulted in me being stuck with Facebook as login:
- Add Facebook login
- Remove initial Gmail login
- Attempt to add Gmail login
Neither of these results in any actual change to my login. However, now I am stuck with my login as a Facebook login as I cannot add back the original Gmail login or the new one.
The email address for my Facebook account appears identical to my initial Google login looking at the logins screen. However, that is different than my profile email address (which would match the second Google account I've been attempting to use).