Can create just fine on the XAML side but when creating from the backend see nothing and things like the extent, and some info has values but some still reporting null???
if you use the .net 10.2.3b example from github samples you can easily recreate the issue by running and from the menu bar select
Layers > FeatureLayers > Feature Layer From Service
also go in ArcGISRuntimeSDKDotNet_DesktopSample.Samples.FeatureLayerFromService.xaml.cs and under ctor uncomment the
// Note: code to create feature layer from a feature service
var task = createfeatureLayer();
p.s. I realize that there is the beta page for this but will not let me log in any more????
p.s.s Also cannot change color of my text from your site???