400 Error after turning on requires username

Hi guys, just implemented Auth0 into my React app for a learning project. It was working fine and I was able to sign up with email and password, but when I turned on “Requires Username” within the “Username-Password-Authentication” connection I keep getting the error message “Something went wrong, please try again later”. The console is telling me its a 400 error. Can anyone help please?

Hi @Chrisd313 ,

Welcome to the Auth0 Community!

I understand that you observed the error on the Signup page after turning on “Requires Username”. I checked your tenant logs and noticed three users were signed up successfully today (11/28). If you still experience this error, could you please DM me the HAR file?