Finally, none of the above worked for me!
PROBLEM:
Apparently, the Smart Lock which I think it built for Web Pages seems to cross over to the APP and it thinks it can apply a saved password that is probably no longer valid that you migh have accidently accepted or use with Google Chrome access to airbnb. So, it just needs to be removed and then I got prompted properly for the password email and password, instead of the problematic screen that said "Enter valid Email" - with my full name and no way to change it to the gmail account or correct email.
SOLUTION:
This worked and had to do with:
Turn off Smart Lock for Passwords for specific sites or apps
https://support.google.com/accounts/answer/6197437
You can view or manage the websites that will never offer to save passwords:
- On your computer, open Chrome.
- At the top right, click More
Settings. - At the bottom, click Advanced.
- Under "Passwords and forms," click Manage passwords.
- Under "Never saved," see the websites that will never offer to save passwords. To remove a site, click More
Remove