I was having a hell of a time logging into fly.io. It kept complaining about an invalid email. I reset the password, got the email, and used a new password, but still could not log in.
I finally realized I could run fly auth whoami and I noticed that the first letter of my email was capitalized.
I then logged in using that form of my email, and success.
Please make the email field of the login case-insensitive.
Also, I understand Personal accounts don’t get email support, but maybe there is one for login issues? I literally had to make a new account to post in the community support forum. Though I wound up not needing that once I tried the fly cli. Sigh.