diff --git a/FModel/ViewModels/AnimGraphViewModel.cs b/FModel/ViewModels/AnimGraphViewModel.cs
index f1e4061e..5785b3d6 100644
--- a/FModel/ViewModels/AnimGraphViewModel.cs
+++ b/FModel/ViewModels/AnimGraphViewModel.cs
@@ -215,9 +215,11 @@ public class AnimGraphViewModel
     /// </summary>
     private static string GetLayerName(List<AnimGraphNode> nodes, int index)
     {
-        // The final output pose layer contains an AnimGraphNode_Root with Name="AnimGraph"
+        // The final output pose layer contains an AnimGraphNode_Root whose
+        // "Name" property (in AdditionalProperties) is set to "AnimGraph"
         var rootNode = nodes.FirstOrDefault(n =>
-            n.Name.Equals("AnimGraph", StringComparison.OrdinalIgnoreCase));
+            n.AdditionalProperties.TryGetValue("Name", out var name) &&
+            name.Equals("AnimGraph", StringComparison.OrdinalIgnoreCase));
         if (rootNode != null)
             return "AnimGraph";
 
diff --git a/FModel/Views/AnimGraphViewer.xaml.cs b/FModel/Views/AnimGraphViewer.xaml.cs
index 773b0044..c6eb207d 100644
--- a/FModel/Views/AnimGraphViewer.xaml.cs
+++ b/FModel/Views/AnimGraphViewer.xaml.cs
@@ -68,9 +68,11 @@ public partial class AnimGraphViewer
             return;
 
         // Show only the final output pose layer (AnimGraph) initially.
-        // The root node of the output layer is an AnimGraphNode_Root with Name="AnimGraph".
+        // The root node of the output layer has a "Name" property set to "AnimGraph"
+        // in its AdditionalProperties (from the AnimGraphNode_Root struct).
         var outputLayer = _viewModel.Layers.FirstOrDefault(l =>
-            l.Nodes.Any(n => n.Name.Equals("AnimGraph", StringComparison.OrdinalIgnoreCase)))
+            l.Nodes.Any(n => n.AdditionalProperties.TryGetValue("Name", out var name) &&
+                             name.Equals("AnimGraph", StringComparison.OrdinalIgnoreCase)))
             ?? _viewModel.Layers[0];
 
         var layersToShow = new[] { outputLayer };