diff --git a/demo-edit-es-module/src/main/java/org/sudu/experiments/diff/RemoteFolderDiffWindow.java b/demo-edit-es-module/src/main/java/org/sudu/experiments/diff/RemoteFolderDiffWindow.java
index e7560a9cd..ca579f571 100644
--- a/demo-edit-es-module/src/main/java/org/sudu/experiments/diff/RemoteFolderDiffWindow.java
+++ b/demo-edit-es-module/src/main/java/org/sudu/experiments/diff/RemoteFolderDiffWindow.java
@@ -177,7 +177,7 @@ private void onDiffApplied(JsArray<JSObject> jsResult) {
     LoggingJs.info("RemoteFolderDiffWindow.onDiffApplied");
     var msg = BackendMessage.deserialize(jsResult);
     rootModel.update(msg.root);
-    if (!isFiltered()) lastSendFrontendMsg.openedFolders.updateWithModel(rootModel);
+    if (!isFiltered()) lastSendFrontendMsg.openedFolders.updateDeepWithModel(rootModel);
     updateNodes();
   }
 
diff --git a/filediff-node-module/src/main/java/org/sudu/experiments/protocol/FrontendTreeNode.java b/filediff-node-module/src/main/java/org/sudu/experiments/protocol/FrontendTreeNode.java
index cff3a1033..710154aa5 100644
--- a/filediff-node-module/src/main/java/org/sudu/experiments/protocol/FrontendTreeNode.java
+++ b/filediff-node-module/src/main/java/org/sudu/experiments/protocol/FrontendTreeNode.java
@@ -30,21 +30,33 @@ public FrontendTreeNode findNode(Deque<String> path) {
     return child.findNode(path);
   }
 
+  public void updateDeepWithModel(RemoteFolderDiffModel model) {
+    if (children == null) return;
+    FrontendTreeNode[] newChildren = new FrontendTreeNode[model.children.length];
+    for (int i = 0; i < model.children.length; i++) {
+      var modelChild = model.child(i);
+      var nodeChild = child(i, modelChild.path, modelChild.isFile());
+      if (nodeChild == null) {
+        nodeChild = new FrontendTreeNode();
+      } else {
+        nodeChild.updateDeepWithModel(modelChild);
+      }
+      newChildren[i] = nodeChild;
+    }
+    children = newChildren;
+  }
+
   // model can contain only less or equal elements
   public void updateWithModel(RemoteFolderDiffModel model) {
     if (children == null) return;
-    if (children.length != model.children.length) {
-      FrontendTreeNode[] newChildren = new FrontendTreeNode[model.children.length];
-      for (int i = 0, j = 0; i < model.children.length; j++) {
-        var modelChild = model.child(i);
-        var nodeChild = children[j];
-        if (modelChild.isFile() == nodeChild.isFile &&
-            modelChild.path.equals(nodeChild.name)
-        ) newChildren[i++] = nodeChild;
-      }
-      children = newChildren;
+    FrontendTreeNode[] newChildren = new FrontendTreeNode[model.children.length];
+    for (int i = 0; i < model.children.length; i++) {
+      var modelChild = model.child(i);
+      var nodeChild = child(i, modelChild.path, modelChild.isFile());
+      if (nodeChild == null) nodeChild = new FrontendTreeNode();
+      newChildren[i] = nodeChild;
     }
-    for (int i = 0; i < children.length; i++) children[i].updateWithModel(model.child(i));
+    children = newChildren;
   }
 
   public void collectPath(int[] path, ArrayWriter pathWriter, FolderDiffModel model, int side) {