Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/CharacteristicPointSet.cs
===================================================================
diff -u -r1974 -r3079
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/CharacteristicPointSet.cs	(.../CharacteristicPointSet.cs)	(revision 1974)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/CharacteristicPointSet.cs	(.../CharacteristicPointSet.cs)	(revision 3079)
@@ -427,9 +427,12 @@
                     // Only add new point if no point on same location was found
                     PerformListInsertWithEvents(Geometry.Points, item.GeometryPoint, geometryIndex);
                 }
-           }
+            }
 
-            UpdateCharacteristicPointHeight(item);
+            if (geometry != null)
+            {
+                UpdateCharacteristicPointHeight(item);
+            }
             UpdateTypeCache(item);            
         }