Hi!
I've found an issue when there is too many elements to be displayed. I think it's chrome related implementation limit.
When I try to display 3.000.000 elements 13px of height each then VScroll breaks. A height of the scrolled element (div in my situation) should be set to 39000000px but it's 3.35544e+07px at most. This makes viewport size has not been changed to appear in the log when I try to scroll to some far position and nothing is displayed. There is also error: Can't set buffer items in the log.