diff --git a/openide.explorer/src/org/openide/explorer/view/VisualizerChildren.java b/openide.explorer/src/org/openide/explorer/view/VisualizerChildren.java
--- a/openide.explorer/src/org/openide/explorer/view/VisualizerChildren.java
+++ b/openide.explorer/src/org/openide/explorer/view/VisualizerChildren.java
@@ -75,6 +75,11 @@
     * and fires info to all listeners.
     */
     public void added(VisualizerEvent.Added ev) {
+        if (this != parent.getChildren()) {
+            // children were replaced (e.g. VisualizerNode.naturalOrder()), quit processing event
+            return;
+        }
+
         ListIterator<VisualizerNode> it = list.listIterator();
         boolean empty = !it.hasNext();
 
@@ -125,6 +130,11 @@
     * and fires info to all listeners.
     */
     public void removed(VisualizerEvent.Removed ev) {
+        if (this != parent.getChildren()) {
+            // children were replaced (e.g. VisualizerNode.naturalOrder()), quit processing event
+            return;
+        }
+
         List remList = Arrays.asList(ev.getRemovedNodes());
 
         Iterator it = list.iterator();
@@ -199,6 +209,11 @@
     * and fires info to all listeners.
     */
     public void reordered(VisualizerEvent.Reordered ev) {
+        if (this != parent.getChildren()) {
+            // children were replaced (e.g. VisualizerNode.naturalOrder()), quit processing event
+            return;
+        }
+
         if (ev.getComparator() != null) {
             //#37802
             ev.array = reorderByComparator(ev.getComparator());