Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs
===================================================================
diff -u -r5447 -r5552
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs	(.../PlLinesToWaternetConverter.cs)	(revision 5447)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs	(.../PlLinesToWaternetConverter.cs)	(revision 5552)
@@ -467,6 +467,7 @@
         LineHelper.RemoveDuplicatedPoints(waternetLine.CalcPoints, toleranceAlmostEqual);
         waternetLine.RemoveUnnecessaryPoints();
         waternetLine.SyncPoints();
+        AvoidUpwardsVerticalLine(waternetLine.CalcPoints);
 
         return waternetLine;
     }