Collection View not following navigation bar to top, Follower leaves a grey box.

I scroll up but the collection view does not follow. I use the storyboard to set up the everything and the constraints.

`if let navigationController = navigationController as? ScrollingNavigationController {
navigationController.followScrollView(collectionView, delay: 20.0, followers: [NavigationBarFollower(view: exploreSearchBar, direction: .scrollUp)])
} else {
print("Not FOUND")
}`

A short youtube video on the issue:
EDIT I had the wrong link up sorry.
[https://youtu.be/bmP3GWvoWqs](url)

The top constraint for the ui collection view to the bottom of the search bar: