Pie chart is not working sometimes.

[Karthikeyan]

i am using pie chart. my scenerio is to have only one categoryAxis (Location), and Series(Amount earned).But for some amount i am not getting the chart but still i am getting the title and labels(Category).  After adding some amount  with that Amount it started working.,
My question is Why it is happening, And  i am expecting this issue in future for some Amount again. 

By the way we are registered user in Kendo.

Do you any one have same issue with Pie chart?   Let you know if i find the reason and solution...,


Help me if you had this issue before and fixed it.


Regards

Karthikeyan Madhavan