I open the web3auth dialog with mfaLevel: 'mandatory' and am taken through the process as expected. I click [Set up 2FA] and follow the prompts to get to the Save Recovery Phrase screen. I enter my email address* and click Continue. The button gives me a visual that suggests it has been clicked, but the form does not submit.
for what it's worth, logging in with mfaLevel: none works well
UI Suggestions:
consider changing the input type of the Email form field to <input type="email">? this will prevent iOS from trying to 1) capitalize your email, and 2) auto-correct spelling.
in dark mode, it is not clear that there is an input field on the screen at all
consider adding a meta tag to prevent the screen from zooming when you tap into the input field on mobile: <meta name="viewport" content="width=device-width, initial-scale=1.0">