I'm trying to get an Overview Map widget working in WPF using the ArcGIS Runtime v100. This worked great in 10.2.7 by following the example at Overview Map | ArcGIS for Developers. However, when I try to write equivalent code in the new update, the program exits without even surfacing a .NET exception.
I created a gist of a small sample that reproduces the problem at Attempt at Overview Map in ArcGIS Runtime .NET/WPF SDK v100. The program crashes · GitHub. I'm hoping I'm just missing something obvious. Any help at all would be appreciated. Thanks!