Index: Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingOutput.cs
===================================================================
diff -u -rfe7119eba5c17b1a7bb18abfdb7879cde5474982 -r04198ff085ea779be378eaecc7f0cb59aae7ecde
--- Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingOutput.cs	(.../ProbabilisticPipingOutput.cs)	(revision fe7119eba5c17b1a7bb18abfdb7879cde5474982)
+++ Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingOutput.cs	(.../ProbabilisticPipingOutput.cs)	(revision 04198ff085ea779be378eaecc7f0cb59aae7ecde)
@@ -67,24 +67,17 @@
         /// </summary>
         public void ClearIllustrationPoints()
         {
-            SectionSpecificOutput?.ClearIllustrationPoints();
-            ProfileSpecificOutput?.ClearIllustrationPoints();
+            SectionSpecificOutput.ClearIllustrationPoints();
+            ProfileSpecificOutput.ClearIllustrationPoints();
         }
-        
+
         public override object Clone()
         {
             var clone = (ProbabilisticPipingOutput) base.Clone();
 
-            if (SectionSpecificOutput != null)
-            {
-                clone.SectionSpecificOutput = (PartialProbabilisticPipingOutput) SectionSpecificOutput.Clone();
-            }
+            clone.SectionSpecificOutput = (PartialProbabilisticPipingOutput) SectionSpecificOutput.Clone();
+            clone.ProfileSpecificOutput = (PartialProbabilisticPipingOutput) ProfileSpecificOutput.Clone();
 
-            if (ProfileSpecificOutput != null)
-            {
-                clone.ProfileSpecificOutput = (PartialProbabilisticPipingOutput) ProfileSpecificOutput.Clone();
-            }
-
             return clone;
         }
     }