Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsOutputChartControl.cs
===================================================================
diff -u -r7585d2fd78627d94d55ffa16423af90a91e4efd4 -r96764c996a0c059b15ccfd968ba165a0ede1b1e3
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsOutputChartControl.cs	(.../MacroStabilityInwardsOutputChartControl.cs)	(revision 7585d2fd78627d94d55ffa16423af90a91e4efd4)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Forms/Views/MacroStabilityInwardsOutputChartControl.cs	(.../MacroStabilityInwardsOutputChartControl.cs)	(revision 96764c996a0c059b15ccfd968ba165a0ede1b1e3)
@@ -221,7 +221,10 @@
 
         private IEnumerable<IMacroStabilityInwardsSoilLayer2D> GetSoilLayers()
         {
-            return data?.InputParameters.SoilProfileUnderSurfaceLine?.GetLayersRecursively() ?? new List<IMacroStabilityInwardsSoilLayer2D>();
+            IEnumerable<IMacroStabilityInwardsSoilLayer2D> layers = data?.InputParameters.SoilProfileUnderSurfaceLine?.Layers;
+            return layers != null
+                       ? MacroStabilityInwardsSoilProfile2DLayersHelper.GetLayersRecursively(layers)
+                       : new List<IMacroStabilityInwardsSoilLayer2D>();
         }
     }
 }
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