Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs
===================================================================
diff -u -rf8c28b3b04cdabb62ea37772efcb1f4ebbbf2b9e -r6d67c92bda51062e3052d003885638a5b30c8575
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision f8c28b3b04cdabb62ea37772efcb1f4ebbbf2b9e)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision 6d67c92bda51062e3052d003885638a5b30c8575)
@@ -305,7 +305,10 @@
                     new AssessmentSectionCompositionChangeHandler(Gui.ViewCommands))
             };
             yield return new PropertyInfo<FailureMechanismContext<IFailureMechanism>, StandAloneFailureMechanismContextProperties>();
-            yield return new PropertyInfo<ICalculationContext<CalculationGroup, IFailureMechanism>, CalculationGroupContextProperties>();
+            yield return new PropertyInfo<ICalculationContext<CalculationGroup, IFailureMechanism>, CalculationGroupContextProperties>
+            {
+                CreateInstance = context => new CalculationGroupContextProperties(context)
+            };
             yield return new PropertyInfo<ICalculationContext<ICalculation, IFailureMechanism>, CalculationContextProperties>();
             yield return new PropertyInfo<StructuresOutputContext, StructuresOutputProperties>
             {