Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/FileImporters/HeightStructureUpdateDataStrategy.cs
===================================================================
diff -u -r8980db4ffba26defbde335c001e559f1e8d0c1d0 -r064653222d1d4df89ac7c644f2227f2fe0aa2070
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/FileImporters/HeightStructureUpdateDataStrategy.cs	(.../HeightStructureUpdateDataStrategy.cs)	(revision 8980db4ffba26defbde335c001e559f1e8d0c1d0)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/FileImporters/HeightStructureUpdateDataStrategy.cs	(.../HeightStructureUpdateDataStrategy.cs)	(revision 064653222d1d4df89ac7c644f2227f2fe0aa2070)
@@ -30,6 +30,7 @@
 using Ringtoets.Common.IO.Exceptions;
 using Ringtoets.Common.IO.Properties;
 using Ringtoets.Common.IO.Structures;
+using Ringtoets.Common.Service;
 using Ringtoets.Common.Utils;
 using Ringtoets.HeightStructures.Data;
 using Ringtoets.HeightStructures.Service;
@@ -120,12 +121,13 @@
                 if (affectedCalculation.HasOutput)
                 {
                     affectedObjects.Add(affectedCalculation);
+                    affectedObjects.AddRange(RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(affectedCalculation));
                 }
             }
 
-            StructuresHelper.UpdateCalculationToSectionResultAssignments(
-                FailureMechanism.SectionResults,
-                FailureMechanism.Calculations.Cast<StructuresCalculation<HeightStructuresInput>>());
+            affectedObjects.AddRange(StructuresHelper.UpdateCalculationToSectionResultAssignments(
+                                         FailureMechanism.SectionResults,
+                                         FailureMechanism.Calculations.Cast<StructuresCalculation<HeightStructuresInput>>()));
 
             return affectedObjects;
         }