Indeed we are able to reproduce the problematic behavior in our local tests as well. We will forward this issue to our developers for further investigation but given the fact that Silverlight is notorious for having some "quirks" with respect to the "Layout Cycle Detected
" exception, we cannot commit a timeframe for the resolution of this issue just yet.
As a workaround for the moment we would suggest you to load the chart instances in several batch operations thus avoiding the layout cycle problem. You can find attached a sample application that loads 30 charts with 100 items each on 3 steps.
the Telerik team