Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/MacroStabilityInwardsKernelWrapper.cs
===================================================================
diff -u -r7023 -r7033
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/MacroStabilityInwardsKernelWrapper.cs	(.../MacroStabilityInwardsKernelWrapper.cs)	(revision 7023)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/MacroStabilityInwardsKernelWrapper.cs	(.../MacroStabilityInwardsKernelWrapper.cs)	(revision 7033)
@@ -80,6 +80,7 @@
         kernelDataInput = macroStabilityInput;
         var macroStabilityOutput = new MacroStabilityOutput
         {
+            PrepareResult = PrepareResult.Successful,
             CalculationResult = CalculationResult.NoRun
         };
         kernelDataOutput = macroStabilityOutput;
@@ -131,7 +132,8 @@
                 if (FailureMechanismParametersMStab.MStabParameters.Model == StabilityModelType.UpliftVan
                     && !upliftSituation.IsUplift && FailureMechanismParametersMStab.MStabParameters.IsUpliftVanRunOnlyWhenUpliftOccurs)
                 {
-                    return PrepareResult.NoUplift;
+                    macroStabilityOutput.PrepareResult = PrepareResult.NoUplift;
+                    return macroStabilityOutput.PrepareResult;
                 }
 
                 FailureMechanismParametersMStab.MStabParameters.Model = model;
@@ -164,7 +166,8 @@
                     FailureMechanismParametersMStab.MStabParameters.Model = StabilityModelType.BishopUpliftVan;
 
                     stabilityCalculatorForSecondCalculation = new MacroStabilityInterface(macroStabilityInput.Input);
-                    return MacroStabilityCommonHelper.PrepareKernel(stabilityCalculatorForSecondCalculation, fileNameForSecondCalculation);
+                    macroStabilityOutput.PrepareResult = MacroStabilityCommonHelper.PrepareKernel(stabilityCalculatorForSecondCalculation, fileNameForSecondCalculation);
+                    return macroStabilityOutput.PrepareResult;
                 }
 
                 if (isBishopUpliftVan)
@@ -266,7 +269,7 @@
         MacroStabilityOutputItem macroStabilityOutputItem = ProperMacroStabilityResultsItem(macroStabilityOutput, 0);
 
         bool isUpliftVan = FailureMechanismParametersMStab.MStabParameters.Model == StabilityModelType.UpliftVan;
-        if (isUpliftVan && macroStabilityOutputItem == null && !macroStabilityOutput!.UpliftSituation.IsUplift)
+        if (isUpliftVan && designScenario.CalculationResult == CalculationResult.NoRun && macroStabilityOutput!.PrepareResult == PrepareResult.NoUplift)
         {
             AddDesignResultNoRun(damKernelInput, designScenario, designResults, macroStabilityOutput);
         }
@@ -276,7 +279,7 @@
         }
 
         bool isBishopUpliftVan = FailureMechanismParametersMStab.MStabParameters.Model == StabilityModelType.BishopUpliftVan;
-        if (isBishopUpliftVan)
+        if (isBishopUpliftVan && designScenario.CalculationResult == CalculationResult.Succeeded)
         {
             var isUplift = true;
             macroStabilityOutputItem = ProperMacroStabilityResultsItem(macroStabilityOutput, 1);
@@ -296,7 +299,7 @@
             }
 
             // Now add the overall result for Bishop/UpliftVan only if both results are available.
-            if (macroStabilityOutput!.StabilityOutputItems.Count == 2)
+            if (macroStabilityOutput!.StabilityOutputItems != null && macroStabilityOutput!.StabilityOutputItems.Count == 2)
             {
                 int index;
                 // Add worst result from Bishop/UpliftVan, but only if both succeeded.