Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs
===================================================================
diff -u -r5157 -r5256
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5157)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5256)
@@ -66,19 +66,19 @@
         {
             return false;
         }
+        
+        GeometryCurve beginCurve = CurveList[0];
+        GeometryCurve endCurve = CurveList[^1];
+        // Just check that the first and last curve are connected
+        if (beginCurve.HeadPoint == endCurve.HeadPoint ||
+            beginCurve.HeadPoint == endCurve.EndPoint ||
+            beginCurve.EndPoint == endCurve.HeadPoint ||
+            beginCurve.EndPoint == endCurve.EndPoint)
+        {
+            return true;
+        }
 
-        //GeometryCurve beginCurve = CurveList[0];
-        //GeometryCurve endCurve = CurveList[CurveList.Count - 1];
-
-        // if (beginCurve.HeadPoint == endCurve.HeadPoint ||
-        //     beginCurve.HeadPoint == endCurve.EndPoint ||
-        //     beginCurve.EndPoint == endCurve.HeadPoint ||
-        //     beginCurve.EndPoint == endCurve.EndPoint)
-        // {
-        //     return true; #Bka is too simple as check, must be rewritten, true for now
-        // }
-
-        return true;//false;
+        return false;
     }
 
     /// <summary>