Index: src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs
===================================================================
diff -u -r803 -r866
--- src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 803)
+++ src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 866)
@@ -1240,7 +1240,12 @@
                                                      surfaceLine2.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder).X)*0.5;
             }
             soilSurfaceProfile.Dispose();
-            AddSoilProfile2DToProjectAndUpdateUI(soilProfile2D);
+            // For some obscure reason, the created soilProfile2D is handled wrong in the UI (see DSB=786).
+            // Its curves do not seem to match the surfaces in the events send on selecting and dragging a curve.
+            // This causes the stange behaviour. To solve this, a Clone is made of the soilProfile2D and that clone is added instead.
+            var newsp2 = (SoilProfile2D)soilProfile2D.Clone();
+            soilProfile2D.Dispose();
+            AddSoilProfile2DToProjectAndUpdateUI(newsp2);
         }
 
         private void AddSoilProfile2DToProjectAndUpdateUI(SoilProfile2D soilProfile2D)
@@ -1253,6 +1258,8 @@
             if (table != null)
             {
                 mainForm.SetAsActiveTable(table);
+                // Make sure the new soilprofile2D is updated in this editor 
+                updateForCenterCrestLocation = true;
                 DataEventPublisher.SelectionChanged(soilProfile2D);
             }
         }