In the future, if you've got a bug that's preventing you from doing your thing, we have bug reporting instructions: https://www.hcaptcha.com/reporting-bugs
ETA: two different people have tested on Chrome and Safari on iPhone 6S locally, and can't reproduce. Please take a screenshot and provide more information to: https://www.hcaptcha.com/reporting-bugs if you want to get this fixed.
In the future, if you've got a bug that's preventing you from doing your thing, we have bug reporting instructions: https://www.hcaptcha.com/reporting-bugs
ETA: two different people have tested on Chrome and Safari on iPhone 6S locally, and can't reproduce. Please take a screenshot and provide more information to: https://www.hcaptcha.com/reporting-bugs if you want to get this fixed.