For me it works. If it doesn’t clear your browser cache.
If you used the Client Area password, you can’t login! The FTP password is your hosting account password, that can be found by logging into your Client Area, selecting the account on which you want to show the credentials, scrolling down to “Account Details” and clicking on “Show/Hide” to show the password.
No, this is not the case. There are (supposed to be) restrictions in place to make sure that your hosting account passwords can never be the same as your client area password. Hosting account passwords are used in many different places, which means they can’t be as strong and can’t be stored as securely as client area passwords.