Only receiving "Invalid Inputs" after attempting to login with an email.

[DKogut17]

Currently trying to login using my email (RH doesn't use usernames anymore) and I only get invalid inputs. I assume this no longer works?

[tcbentley]

I'm getting the same thing 6-7 months later so seems like a safe bet

[amp1590]

Tried both the email and the username given by Robinhood. Still getting the same error. So what is the fix?