Sometimes when scrolling content disappear.
Steps to reproduce:
1. You need at least 2 panels - one with scrolling list.
2. Scroll to the bottom of the list.
3. Drag list a little down, then up so the list should be like this:
You can also try to drag whole list out of container view (easier to reproduce).
4. Release the mouse button (stop dragging) and change panel fast (before list back to right place).
5. List should disappear and weird translate3d should be applied.
Another (maybe even easier) way to reproduce is by using popup instead of panels.
Steps are the same, but you need to close popup instead switching panels.
Any ideas why is it happening?