PopUp Pro pop up closing when I fill out Gravity Form

Hello! I have the PopUp Plugin set up on my development server. I have "Load PopUp" set on Page Footer, and the form submit set to Refersh PopUp or close (default). I use Gravity forms for the simple contact form. When you click the submit button, the PopUp closes and doesn't display the confirmation message. Instead if someone clicks on the Contact button again, the PopUp comes up WITH the confirmation button.

I am guessing there must be some sort of javascript, AJAX or something conflicting. I have disabled plugins, I have switched settings etc and just can't find the answer. Please help! Thank you!