Highchart Js Area Chart Tooltip Bug

I have been trying to clear this bug but i still not getting the point why it occurs. check the code at http://jsfiddle.net/3RKL4/ The tool tip works only for the first and last po

Solution 1:

Ideally Highchart requires data to be increasing order of time. Your data doesn't seem to satisfy that, it doesn't work event with 3 points http://jsfiddle.net/jugal/3RKL4/5/ Reversing the order fixed it @ http://jsfiddle.net/jugal/3RKL4/6/