1) Open FlyGrid Samples
2) Click on "Best Performance!"
3) Nodes to Add: 10000, Levels to Add: 3, Nodes in Sublevels: 3
4) Click "Add"
5) Click on the SCROLLBAR TWICE (Not the Scrollbar-Handle and Not the scroll bar Down-Button!!!)
6) Click on the "Cell-0" that is in the middle of the screen.
Bug* Instead of it being where it you clicked, it's at the bottom of the screen now.
7) Click on the LAST Sub-Node in the SAME NODE YOU JUST EXPANDED.
Bug* Instead of that Node opening where you clicked - you're sent to the BOTTOM of the TREE