Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Factories/MacroStabilityInwardsChartDataPointsFactory.cs
===================================================================
diff -u -r2bdf4a594b0ca27cce7b6485103c1011291a50d5 -rd0b68b32b0b7787b77b8da952b91cbfb7445c496
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Factories/MacroStabilityInwardsChartDataPointsFactory.cs	(.../MacroStabilityInwardsChartDataPointsFactory.cs)	(revision 2bdf4a594b0ca27cce7b6485103c1011291a50d5)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Factories/MacroStabilityInwardsChartDataPointsFactory.cs	(.../MacroStabilityInwardsChartDataPointsFactory.cs)	(revision d0b68b32b0b7787b77b8da952b91cbfb7445c496)
@@ -419,7 +419,7 @@
             {
                 new Point2D(surfaceLine.LocalGeometry.First().X, tangentLine),
                 new Point2D(surfaceLine.LocalGeometry.Last().X, tangentLine)
-            });
+            }).ToArray();
         }
 
         /// <summary>