As you can see, the center of the donut is filled up.
I found out the problem should be about the holeSize and the data ratio combination.
Say, if you update the chart1's holeSize to 25, the hole will be show again
Or if you update the chart1's data (data1) B from 1 to 1.1, the hole will be show again.
And, as on chart3 & chart4, you may also find the same issue when using "percentage".
You can try different combination on the holeSize and data to trigger this issue.
6 Answers, 1 is accepted
The problem is fixed and the fix will be included with the next official release of Kendo UI. Also you can download the next internal build that will included the fix.
I have updated your points.
the Telerik team
I can still replicate this issue in the latest build. If one of my donut value is zero, it fills completely the hole, as shown in his example.
Sure. I've created an example that reproduce the error: http://dojo.telerik.com/UkaZu
Thanks a lot, it seems to make the trick ;).