Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -re8bd0a86ee14726c6006b18a642f1e4f6090efff -r0252ee3682bdc2ac5f94166b8104ae7d30069180
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision e8bd0a86ee14726c6006b18a642f1e4f6090efff)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 0252ee3682bdc2ac5f94166b8104ae7d30069180)
@@ -85,7 +85,7 @@
                 throw new ArgumentNullException(nameof(mergeData));
             }
 
-            BeforeMerge(targetAssessmentSection);
+            BeforeMerge(targetAssessmentSection, mergeData);
 
             var changedObjects = new List<IObservable>
             {
@@ -98,11 +98,36 @@
             AfterMerge(changedObjects);
         }
 
-        private void BeforeMerge(AssessmentSection assessmentSection)
+        private void BeforeMerge(AssessmentSection assessmentSection, AssessmentSectionMergeData mergeData)
         {
-            viewCommands.RemoveAllViewsForItem(assessmentSection);
+            CloseViewForFailureMechanism(mergeData.MergePiping, assessmentSection.Piping);
+            CloseViewForFailureMechanism(mergeData.MergeGrassCoverErosionInwards, assessmentSection.GrassCoverErosionInwards);
+            CloseViewForFailureMechanism(mergeData.MergeMacroStabilityInwards, assessmentSection.MacroStabilityInwards);
+            CloseViewForFailureMechanism(mergeData.MergeMacroStabilityOutwards, assessmentSection.MacroStabilityOutwards);
+            CloseViewForFailureMechanism(mergeData.MergeMicrostability, assessmentSection.Microstability);
+            CloseViewForFailureMechanism(mergeData.MergeStabilityStoneCover, assessmentSection.StabilityStoneCover);
+            CloseViewForFailureMechanism(mergeData.MergeWaveImpactAsphaltCover, assessmentSection.WaveImpactAsphaltCover);
+            CloseViewForFailureMechanism(mergeData.MergeWaterPressureAsphaltCover, assessmentSection.WaterPressureAsphaltCover);
+            CloseViewForFailureMechanism(mergeData.MergeGrassCoverErosionOutwards, assessmentSection.GrassCoverErosionOutwards);
+            CloseViewForFailureMechanism(mergeData.MergeGrassCoverSlipOffOutwards, assessmentSection.GrassCoverSlipOffOutwards);
+            CloseViewForFailureMechanism(mergeData.MergeGrassCoverSlipOffInwards, assessmentSection.GrassCoverSlipOffInwards);
+            CloseViewForFailureMechanism(mergeData.MergeHeightStructures, assessmentSection.HeightStructures);
+            CloseViewForFailureMechanism(mergeData.MergeClosingStructures, assessmentSection.ClosingStructures);
+            CloseViewForFailureMechanism(mergeData.MergePipingStructure, assessmentSection.PipingStructure);
+            CloseViewForFailureMechanism(mergeData.MergeStabilityPointStructures, assessmentSection.StabilityPointStructures);
+            CloseViewForFailureMechanism(mergeData.MergeStrengthStabilityLengthwiseConstruction, assessmentSection.StrengthStabilityLengthwiseConstruction);
+            CloseViewForFailureMechanism(mergeData.MergeDuneErosion, assessmentSection.DuneErosion);
+            CloseViewForFailureMechanism(mergeData.MergeTechnicalInnovation, assessmentSection.TechnicalInnovation);
         }
 
+        private void CloseViewForFailureMechanism(bool shouldClose, IFailureMechanism failureMechanism)
+        {
+            if (shouldClose)
+            {
+                viewCommands.RemoveAllViewsForItem(failureMechanism);
+            }
+        }
+
         private static void AfterMerge(IEnumerable<IObservable> changedObjects)
         {
             changedObjects.ForEachElementDo(co => co.NotifyObservers());