Invalid Request Payload Input error when I try to log in

When inputting incorrect login information, you may see an error that's different than the normal "Incorrect username or password":

This error also means that your username or password is incorrect, however, the incorrect information is also outside of normal parameters. For example, you may have entered in an incorrect password that is too short, or a character that isn't allowed in your username (email). Either way, this error also means that your username or password isn't correct and putting in the correct information will allow you to log in.