Index: Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs
===================================================================
diff -u -r1878cb65b082e46d7e9c74e849d79980b46d3af9 -r170df240d25dda070d25fd7ac94b34ba08ef5a39
--- Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision 1878cb65b082e46d7e9c74e849d79980b46d3af9)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision 170df240d25dda070d25fd7ac94b34ba08ef5a39)
@@ -301,10 +301,7 @@
                 var duneErosionFailureMechanism = failureMechanism as DuneErosionFailureMechanism;
                 if (duneErosionFailureMechanism != null)
                 {
-                    IEnumerable<IObservable> affectedDuneLocations =
-                        DuneErosionDataSynchronizationService.ClearDuneLocationOutput(duneErosionFailureMechanism.DuneLocations)
-                                                             .Concat(DuneErosionDataSynchronizationService.ClearDuneLocationCalculationOutput(duneErosionFailureMechanism));
-                    changedObservables.AddRange(affectedDuneLocations);
+                    changedObservables.AddRange(DuneErosionDataSynchronizationService.ClearDuneLocationCalculationOutput(duneErosionFailureMechanism));
                 }
             }