Re-captcha doesn’t show on mobile.

I have added re-captcha with a valid key and when accessing the form from desktop all good but when accessing from mobile the re-captcha disappear. It’s weird because if you access the contact form and you don’t fill any field yet you can see the re-captcha but when you start filling the fields it disappear and doesn’t show.

The page I need help with: [log in to see the link]