Vertical scroll jumps to bottom

I have a reactive web application. When scrolling through a long vertical list, as I am nearing the bottom the scroll simply jumps to the bottom end of the list, skipping the last  ~1/3 elements in the list. I need to scroll back up again to find those elements. It is only an issue when the list gets long, for shorter lists it works fine. It is also a somewhat complex list, because it's hierarchical, so it contains a list within a list, but this still works when there are fewer elements, so unsure if that's part of the issue. 

Does anyone have an idea why the scroll jumps over the bottom part of the list? 

Rank: #184

Hi, aren't you using any JS to jumping to an element when you reach a position on the screen?

Can you upload the oml?