Why Hidden fields are being displayed?

Why is it that my hidden fields gets' displayed on my form

I cloned and checked your form and I was not able to replicate this issue:

Hidden fields are not showing for me, could you please check if the issue persists?

We'll wait for your response.

Thank you!

Thanks, we subsequently 'fixed' the problem before you looked at it. 

Problem was on our side. 

Thanks anyway.

I'm glad you were able to solve the problem.

Please let us know if you have any further questions.

Thank you!