Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismView.cs
===================================================================
diff -u -r5ee23018be55ff03a7851e54ca0a6682c521f952 -r1115fb4520d55c5018577d5160f70ee54896cf1a
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismView.cs	(.../ClosingStructuresFailureMechanismView.cs)	(revision 5ee23018be55ff03a7851e54ca0a6682c521f952)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismView.cs	(.../ClosingStructuresFailureMechanismView.cs)	(revision 1115fb4520d55c5018577d5160f70ee54896cf1a)
@@ -206,7 +206,7 @@
         private void SetMapDataFeatures()
         {
             ReferenceLine referenceLine = data.Parent.ReferenceLine;
-            IEnumerable<FailureMechanismSection> failureMechanismSections = data.WrappedData.Sections;
+            FailureMechanismSection[] failureMechanismSections = data.WrappedData.Sections.ToArray();
             HydraulicBoundaryDatabase hydraulicBoundaryDatabase = data.Parent.HydraulicBoundaryDatabase;
             IEnumerable<ForeshoreProfile> foreshoreProfiles = data.WrappedData.ForeshoreProfiles;
             IEnumerable<ClosingStructure> structures = data.WrappedData.ClosingStructures;