I have started getting the following error on a page with a chart present:
(29060): Assembly Ref addref Telerik.XamarinForms.Chart[0xab4fc630] -> System[0xab814130]: 14
Unhandled Exception: System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array.
This happens on the InitializeComponent() call in the page constructor. The problem seems to be with the Behaviors, when I remove the following lines from my XAML, the exception doesn't happen:
<telerikChart:RadCartesianChart.Behaviors>
<telerikChart:ChartPanAndZoomBehavior ZoomMode="Both" PanMode="Both"/>
<telerikChart:ChartTrackBallBehavior x:Name="BallBehavior" ShowIntersectionPoints="True" ShowTrackInfo="True" />
</telerikChart:RadCartesianChart.Behaviors>
I'm using the latest versions of xamarin.forms [3.0.0.482510] and the telerik controls [2018.2.516.0] (both updated in my project today).