Thinkpad T460P: Scrolling jumps to top on 2 finger touch
Solution 1:
This bug is fixed in Chrome 52: https://productforums.google.com/forum/#!topic/chrome/Xh9GV7jNymo https://bugs.chromium.org/p/chromium/issues/detail?id=609748
Until then, the 'solution' I use is to place one finger on the trackpad before the other. Then you can scroll without jumping.