I've recently updated our application which uses the UltraGeographicMap control to Ultimate UI for Windows 20.1 from the previous version. I'm now seeing a null exception upon creating a new GeographicSymbolSeries object that fails on the parameterless constructor when trying to get the MarkerThickness value.

   at Infragistics.Controls.Maps.GeographicSymbolSeries.get_MarkerThickness()
   at Infragistics.Controls.Maps.GeographicSymbolSeriesView.OnHostedSeriesUpdated()
   at Infragistics.Controls.Maps.GeographicMapSeriesHost.OnHostedSeriesUpdated()
   at Infragistics.Controls.Maps.GeographicSymbolSeries..ctor()
   at Infragistics.Win.DataVisualization.GeographicSymbolSeries..ctor()

I'm creating the object using the parameterless constructor then setting properties on the resulting object, like so:

GeographicSymbolSeries series = new GeographicSymbolSeries();

series.DataSource = [my data source object];
series.LongitudeMemberPath = "Longitude";
series.LatitudeMemberPath = "Latitude";
series.MarkerCollisionAvoidance = CollisionAvoidanceType.FadeAndShift;
series.MarkerTemplate = new [my Infragistics.Graphics.CustomRenderTemplate implementation];

This was working correctly prior to the 20.1 update. Are there new requirements for the context in which GeographicSymbolSeries objects can be created?