Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs
===================================================================
diff -u -r5069 -r5073
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5069)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5073)
@@ -249,11 +249,15 @@
     /// <returns>The cloned GeometryLoop</returns>
     public override GeometryLoop Clone()
     {
+        SyncPoints();
         GeometryPointString clonedGeometryPointString = base.Clone();
-        GeometryLoop clonedGeometryLoop = new GeometryLoop();
+        var clonedGeometryLoop = new GeometryLoop();
         clonedGeometryLoop.Points.AddRange(clonedGeometryPointString.Points);
-        clonedGeometryLoop.SyncCalcPoints(); //Always sync the calcPoints after adding points or preferably add the calcPoints to the clonedGeometryPointString and synchronize the points (using SyncPoints)
-        clonedGeometryLoop.CurveList.AddRange(CurveList); // Wrong: The points in the new curves must be retrieved by location in the new pointlist in order to properly clone the curves
+        clonedGeometryLoop.SyncCalcPoints();
+        foreach (GeometryCurve curve in CurveList)
+        {
+            clonedGeometryLoop.CurveList.Add(curve.Clone(clonedGeometryLoop.CalcPoints));
+        }
         return clonedGeometryLoop;
     }
 }
\ No newline at end of file