Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/PropertyClasses/PipingInputContextProperties.cs
===================================================================
diff -u -r43fb77c51a8d1c0af128a2da0c3d51bbea6e25bb -r16b01f208966fa77f73b7977db23da94786f08d1
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/PropertyClasses/PipingInputContextProperties.cs	(.../PipingInputContextProperties.cs)	(revision 43fb77c51a8d1c0af128a2da0c3d51bbea6e25bb)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/PropertyClasses/PipingInputContextProperties.cs	(.../PipingInputContextProperties.cs)	(revision 16b01f208966fa77f73b7977db23da94786f08d1)
@@ -160,8 +160,12 @@
             }
             set
             {
-                data.WrappedData.SurfaceLine = value;
-                data.WrappedData.NotifyObservers();
+                if (!ReferenceEquals(value, data.WrappedData.SurfaceLine))
+                {
+                    data.WrappedData.SurfaceLine = value;
+                    data.WrappedData.SoilProfile = null;
+                    data.WrappedData.NotifyObservers();
+                }
             }
         }