So i have been working on an offline map that uses shapefiles and kml's, I finally got to the point i was ready to add the license key to the app and once i did the map just went from showing all my files to showing a grey screen labeled powered by esri. no errors listed license status 3 level 1 type 2.
Local data such as Shapefiles and KML will require a Standard license key. Is that the level of key you have added into your licensing code? Licensing your ArcGIS Runtime App | ArcGIS for Developers (Go to ArcGIS Runtime Licensing and see the FAQ "What data types are supported as "local data files" and which licensing level do they require?")