Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Views/IllustrationPointsFaultTreeControl.cs
===================================================================
diff -u -r09657885dd6a95975a8e117f8b8c570cd84a2523 -rde88256c85af2400bcadd85816ca818cd9474262
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Views/IllustrationPointsFaultTreeControl.cs	(.../IllustrationPointsFaultTreeControl.cs)	(revision 09657885dd6a95975a8e117f8b8c570cd84a2523)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Views/IllustrationPointsFaultTreeControl.cs	(.../IllustrationPointsFaultTreeControl.cs)	(revision de88256c85af2400bcadd85816ca818cd9474262)
@@ -90,7 +90,7 @@
         /// is not of type <see cref="FaultTreeIllustrationPoint"/> or <see cref="SubMechanismIllustrationPoint"/>.</exception>
         private GraphNode RegisterNode(IllustrationPointNode node)
         {
-            List<GraphNode> childNodes = node.Children.Select(RegisterNode).ToList();
+            GraphNode[] childNodes = node.Children.Select(RegisterNode).ToArray();
 
             GraphNode graphNode = RingtoetsGraphNodeFactory.CreateGraphNode(node.Data, childNodes);
             drawnNodes.Add(new DrawnIllustrationPointNode