Activating MailMunch plugin breaks Divi's fullwidth header module

Hey there! First of all, I really like the MailMunch plugin.

Unfortunately, activating MailMunch is breaking Divi’s ability to create fullscreen elements with the Fullwidth Header module.

Here is my project with MailMunch:
http://localsphere.staging.wpengine.com/

And here is my project without it:
http://localsphere.com/

Notice how the background video takes up the fullscreen without MailMunch. When I activate MailMunch, the video gets cut off about 100px from the bottom of the screen.

Is there a way to prevent this?

Thanks!

https://wordpress.org/plugins/mailchimp-forms-by-mailmunch/