Index: Riskeer/Piping/src/Riskeer.Piping.Forms/Views/PipingScenariosView.cs
===================================================================
diff -u -r4b14d65f3a2b2a856073602dfe837c913397f078 -rde794cd7f454c1763b3b0fb40ed879c0d5eabf3c
--- Riskeer/Piping/src/Riskeer.Piping.Forms/Views/PipingScenariosView.cs	(.../PipingScenariosView.cs)	(revision 4b14d65f3a2b2a856073602dfe837c913397f078)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/Views/PipingScenariosView.cs	(.../PipingScenariosView.cs)	(revision de794cd7f454c1763b3b0fb40ed879c0d5eabf3c)
@@ -354,7 +354,7 @@
                 return;
             }
 
-            if (selectedFailureMechanismSection.ScenarioConfigurationPerSection != null)
+            if (selectedFailureMechanismSection?.ScenarioConfigurationPerSection != null)
             {
                 selectedFailureMechanismSection.ScenarioConfigurationPerSection.ScenarioConfigurationType = newCheckedRadioButton == radioButtonSemiProbabilistic
                                                                                                                 ? PipingScenarioConfigurationPerFailureMechanismSectionType.SemiProbabilistic