Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs
===================================================================
diff -u -rfdfadac14aca46b2ffde145e6532ee7bb18d2507 -r303f338bc9e42d1d7621666fdf83b93a11f28b64
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs	(.../FailureMechanismSectionsProbabilityAssessmentView.cs)	(revision fdfadac14aca46b2ffde145e6532ee7bb18d2507)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs	(.../FailureMechanismSectionsProbabilityAssessmentView.cs)	(revision 303f338bc9e42d1d7621666fdf83b93a11f28b64)
@@ -37,6 +37,7 @@
         private readonly ProbabilityAssessmentInput probabilityAssessmentInput;
 
         private readonly Observer failureMechanismObserver;
+        private double currentA;
 
         /// <summary>
         /// Creates a new instance of <see cref="FailureMechanismSectionsProbabilityAssessmentView"/>.
@@ -70,6 +71,8 @@
 
         protected override void SetDataGridViewControlData()
         {
+            currentA = probabilityAssessmentInput.A;
+
             failureMechanismSectionsDataGridViewControl.SetDataSource(
                 sections.Select(section => new FailureMechanismSectionProbabilityAssessmentRow(section, probabilityAssessmentInput))
                         .ToArray());
@@ -84,6 +87,13 @@
 
         private void HandleProbabilityAssessmentInputChange()
         {
+            if (currentA.Equals(probabilityAssessmentInput.A))
+            {
+                return;
+            }
+
+            currentA = probabilityAssessmentInput.A;
+
             failureMechanismSectionsDataGridViewControl.RefreshDataGridView();
         }
     }