ScrollView area not completely responsive to scroll swipe on top

[msqar]

There are like 60px beneath the parallax header where the content is, that no matter what or how I swipe, it won't detect my swipe, but 60ish below that it will.

My current setup is this one, height is the screen's height.

headerMinHeight={height * 0.3} 
headerMaxHeight={height / 2}

Rest is pretty default as the example.

What could be the reason of this weird behavior?