Footer has space after it - cannot remove or locate?

Hello! Having a bit of a 'mare with our footer ever since we incorporated Network N ads into the site. There is a video player which pops up, which is fine, and it should go under the footer when you scroll to the bottom - which it does. However, there is also a big old chunk of blank space that I cannot for the life of me locate (see highlighted squiggly red bit):

The footer is the last element in our Articles Template, so I have no idea why something is being displayed beyond it:

Can anyone point out to me which element this extra dead space is coming from?

Thanks in advance!


Here is my site Read-Only: [Webflow - Jump Dash Roll]

It would be helpful if you could share a published URL to the page, so inspection in a browser is possible.

Apologies - here you go:

I’m actually wondering if it’s the ad causing the issue and overriding Webflow?

On further investigation, it looks like this only happens when in Edit mode on the site, or if the edit button is pulled up from the bottom. I’m not actually sure if anything can be done about that. It doesn’t affect end users though, so I guess it isn’t a big deal.