Auth0 Lock for iOS: SignUp screen option for username

That’s all you need from configuration standpoint according to the docs Lock.swift: Configuration Options

Other things I would check is that if the build you are testing with is current? Maybe rebuild your project and try again? Also can you double check if lock is configured with the right connection?GitHub - auth0/Lock.swift: A Swift & iOS framework to authenticate using Auth0 and with a Native Look & Feel