Glad you reproduced the problem. When can we expect the next maintenance release?

Please find attached a small test program reproducing the bug. If you zoom on the chart, TChart throws an exception. As soon as you remove the 'AfterDraw' event handler methods (See ChartUtils.cs in the attached project), no more crash. Also, the Graphics3D object received in the 'AfterDraw' event h...

We recently upgraded from TChart.WPF 3.5.3700.30575 to 4.1.2013.05282. We face the following problem: For some of our xy cartesian charts we add event handler methods for the event 'AfterDraw' to draw some custom graphics. Since upgrading to the new TChart, the following exception is thrown when zoo...