My charts are not showing in iOS, but do show correctly in UWP, and mostly correct in Android. I've used both the Visual Studio Simulator, and the simulator on the MacBook and the results are the same.
In iOS, just the labels and Axis lines render. My AppDelegate.cs file is setup correctly (below). My environment is:
Xcode 8.2.1 (8C1002)
Xamarin Studio 6.2 (build 1821).
Xamarin Forms: 220.127.116.11-pre2
SkiaSharp (Views, Forms) 1.56.1
I don't see any entries in the iOS log related to either the data, or Telerik, or chart.