Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -rf423289729b381361eed8bb5eacc7596a710d78a -rce9e1d476f00cfb42ce2a8ab6c762baf5abfd97b
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision f423289729b381361eed8bb5eacc7596a710d78a)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision ce9e1d476f00cfb42ce2a8ab6c762baf5abfd97b)
@@ -396,6 +396,11 @@
             {
                 return ReferenceEquals(view.Data, pipingCalculationScenarioContext.WrappedData);
             }
+            var pipingCalculationScenario = o as PipingCalculationScenario;
+            if (pipingCalculationScenario != null)
+            {
+                return ReferenceEquals(view.Data, pipingCalculationScenario);
+            }
 
             IEnumerable<PipingCalculationScenario> calculations = null;