Index: dam engine/trunk/src/Deltares.DamEngine.Data/Geotechnics/SurfaceLine2Extensions.cs
===================================================================
diff -u -r452 -r684
--- dam engine/trunk/src/Deltares.DamEngine.Data/Geotechnics/SurfaceLine2Extensions.cs	(.../SurfaceLine2Extensions.cs)	(revision 452)
+++ dam engine/trunk/src/Deltares.DamEngine.Data/Geotechnics/SurfaceLine2Extensions.cs	(.../SurfaceLine2Extensions.cs)	(revision 684)
@@ -249,6 +249,7 @@
                     line.CharacteristicPoints.Annotate(index, type.Value);
                 }
             }
+            line.Geometry.SyncCalcPoints();
         }
 
         /// <summary>