Why do I get a second 'Submit' button after submitting form?

My form asks the user if the want to pay via PayPal or check/cash (on Page 4).  If paying via PayPal, then I show the PayPal widget and have things configured accordingly.  If they select check/cash for payment method, then I hide the PayPal components (on last page, Page 7).

If PayPal is selected, then the Submit Membership button acts just fine.  The user is directed to PayPal and all is good.  However, if the user selects "Check/Cash" for payment type and clicks my Submit Membership button, the user is directed to another page that has another Captcha control with another "submit form" button.  The form does not redirect to PayPal, which is good.  After the user clicks the second "submit form" then they are redirected to my 'Thank You' page, which again is what I expect.

What I don't expect or want is this second submit page / button.  How can I remove this?

It seems to be happening due to the captcha field on the form. Though the field is hidden, the captcha field is active and required field on the form and should be completed. So, when the form is submitted, it is asking to complete the captcha on the next page. Please try removing the field from the show/hide conditions so that it will be displayed for both payment methods and the form should be working fine.

Hope this information helps! 

That was it.  Thank you!