diff --git a/testing/bevy_example/expected_screenshot.png b/testing/bevy_example/expected_screenshot.png
index 94da691..43569fc 100644
Binary files a/testing/bevy_example/expected_screenshot.png and b/testing/bevy_example/expected_screenshot.png differ
diff --git a/testing/bevy_example/src/game/mod.rs b/testing/bevy_example/src/game/mod.rs
index a38b573..50ffffc 100644
--- a/testing/bevy_example/src/game/mod.rs
+++ b/testing/bevy_example/src/game/mod.rs
@@ -19,16 +19,10 @@ fn start_game(mut next_app_state: ResMut<NextState<AppState>>) {
 }
 
 
-#[derive(Debug)]
-struct Node {
-    value: String,
-    children: Vec<String>,
-}
-
 // if the export from Blender worked correctly, we should have animations (simplified here by using AnimationPlayerLink)
-// if the export from Blender worked correctly, we should have an Entity called "Cylinder" that has two components: UnitTest, TupleTestF32
 // if the export from Blender worked correctly, we should have an Entity called "Blueprint4_nested" that has a child called "Blueprint3" that has a "BlueprintName" component with value Blueprint3
 // if the export from Blender worked correctly, we should have a blueprints_list
+// if the export from Blender worked correctly, we should have the correct tree of entities 
 #[allow(clippy::too_many_arguments)]
 fn validate_export(
     parents: Query<&Parent>,
@@ -36,7 +30,6 @@ fn validate_export(
     names: Query<&Name>,
     blueprints: Query<(Entity, &Name, &BlueprintName)>,
     animation_player_links: Query<(Entity, &AnimationPlayerLink)>,
-    exported_cylinder: Query<(Entity, &Name, &UnitTest, &TupleTestF32)>,
     empties_candidates: Query<(Entity, &Name, &GlobalTransform)>,
 
     blueprints_list: Query<(Entity, &BlueprintsList)>,
@@ -80,11 +73,10 @@ fn validate_export(
         }
     }
 
-    // generate parent/child tree
+    // generate parent/child "tree"
     if !root.is_empty() {
         let root = root.single();
         let mut tree: HashMap<String, Vec<String>> = HashMap::new();
-        // println!("root {}", root.1);
 
         for child in children.iter_descendants(root.0) {
             let child_name:String = names.get(child).map_or(String::from("no_name"), |e| e.to_string() ); //|e| e.to_string(), || "no_name".to_string());
diff --git a/tools/gltf_auto_export/helpers/helpers_scenes.py b/tools/gltf_auto_export/helpers/helpers_scenes.py
index ded9753..039a41f 100644
--- a/tools/gltf_auto_export/helpers/helpers_scenes.py
+++ b/tools/gltf_auto_export/helpers/helpers_scenes.py
@@ -68,6 +68,7 @@ def copy_animation_data(source, target):
             bpy.ops.object.make_links_data(type='ANIMATION')
         # we add an "animated" flag component 
         target['Animated'] = f'(animations: {animations})'.replace("'", '"') #'(animations: [])' #
+        
         """print("copying animation data for", source.name, target.animation_data)
         properties = [p.identifier for p in source.animation_data.bl_rna.properties if not p.is_readonly]
         for prop in properties:
diff --git a/tools/gltf_auto_export/tests/test_bevy_integration.py b/tools/gltf_auto_export/tests/test_bevy_integration.py
index b64f237..8de7f73 100644
--- a/tools/gltf_auto_export/tests/test_bevy_integration.py
+++ b/tools/gltf_auto_export/tests/test_bevy_integration.py
@@ -30,6 +30,10 @@ def setup_data(request):
         diagnostics_file_path = os.path.join(root_path, "bevy_diagnostics.json")
         if os.path.exists(diagnostics_file_path):
             os.remove(diagnostics_file_path)
+        
+        hierarchy_file_path = os.path.join(root_path, "bevy_hierarchy.json")
+        if os.path.exists(hierarchy_file_path):
+            os.remove(hierarchy_file_path)
 
         screenshot_observed_path = os.path.join(root_path, "screenshot.png")
         if os.path.exists(screenshot_observed_path):