Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs
===================================================================
diff -u -r1237 -r1327
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 1237)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 1327)
@@ -60,28 +60,37 @@
         /// </returns>
         public PrepareResult Prepare(DamKernelInput damKernelInput, int iterationIndex, out IKernelDataInput kernelDataInput, out IKernelDataOutput kernelDataOutput)
         {
-            var damPipingBlighOutput = new DamPipingBlighOutput()
+            try
             {
-                CalculationResult = CalculationResult.NoRun,
-                FoSp = defaultMaxReturnValue
-            };
-            kernelDataOutput = damPipingBlighOutput;
-            if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
-            {
-                var damPipingBlighInput = new DamPipingBlighInput();
+                var damPipingBlighOutput = new DamPipingBlighOutput()
+                {
+                    CalculationResult = CalculationResult.NoRun,
+                    FoSp = defaultMaxReturnValue
+                };
+                kernelDataOutput = damPipingBlighOutput;
+                if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
+                {
+                    var damPipingBlighInput = new DamPipingBlighInput();
 
-                var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
-                var location = damKernelInput.Location;
-                double waterLevel = damKernelInput.RiverLevelHigh;
-                UpliftSituation upliftSituation;
-                PlLines plLines = PlLinesHelper.CreatePlLinesForPiping(location, soilProfile1D, waterLevel, 
-                    damKernelInput.DamFailureMechanismeCalculationSpecification.AssessmentScenarioJobSettings.HydraulicShortcutType,
-                    out upliftSituation);
-                EvaluateUpliftSituation(damKernelInput, out kernelDataInput, plLines, damPipingBlighInput, waterLevel, damPipingBlighOutput);
-                return PrepareResult.Successful;
+                    var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
+                    var location = damKernelInput.Location;
+                    double waterLevel = damKernelInput.RiverLevelHigh;
+                    UpliftSituation upliftSituation;
+                    PlLines plLines = PlLinesHelper.CreatePlLinesForPiping(location, soilProfile1D, waterLevel,
+                        damKernelInput.DamFailureMechanismeCalculationSpecification.AssessmentScenarioJobSettings.HydraulicShortcutType,
+                        out upliftSituation);
+                    EvaluateUpliftSituation(damKernelInput, out kernelDataInput, plLines, damPipingBlighInput, waterLevel, damPipingBlighOutput);
+                    return PrepareResult.Successful;
+                }
+                kernelDataInput = null;
+                return PrepareResult.NotRelevant;
             }
-            kernelDataInput = null;
-            return PrepareResult.NotRelevant;
+            catch (Exception)
+            {
+                kernelDataInput = null;
+                kernelDataOutput = null;
+                return PrepareResult.Failed;
+            }
         }
 
         private static void EvaluateUpliftSituation(DamKernelInput damKernelInput, out IKernelDataInput kernelDataInput, PlLines plLines, DamPipingBlighInput damPipingBlighInput, double waterLevel, DamPipingBlighOutput damPipingBlighOutput)