diff --git a/Content/Python/auto_import_pipeline.py b/Content/Python/auto_import_pipeline.py
index f922f10..b2fb4dc 100644
--- a/Content/Python/auto_import_pipeline.py
+++ b/Content/Python/auto_import_pipeline.py
@@ -63,10 +63,16 @@ def import_fbx(filename, name, dest_path):
 
 
 def assign_material(skeletal_mesh, material):
-    slots = skeletal_mesh.get_editor_property("materials")
-    for slot in slots:
-        slot.set_editor_property("material_interface", material)
-    skeletal_mesh.set_editor_property("materials", slots)
+    new_slots = []
+    for slot in skeletal_mesh.get_editor_property("materials"):
+        new_slot = unreal.SkeletalMaterial()
+        new_slot.set_editor_property("material_interface", material)
+        new_slot.set_editor_property("material_slot_name", slot.get_editor_property("material_slot_name"))
+        new_slot.set_editor_property("uv_channel_data", slot.get_editor_property("uv_channel_data"))
+        new_slots.append(new_slot)
+    skeletal_mesh.set_editor_property("materials", new_slots)
+    skeletal_mesh.modify()
+    skeletal_mesh.post_edit_change()
     unreal.EditorAssetLibrary.save_asset(skeletal_mesh.get_path_name())
 
 
diff --git a/DemoAssets/pilot/CC3_Base_Plus_Bake_N.jpeg b/DemoAssets/pilot/CC3_Base_Plus_Bake_N.jpeg
new file mode 100644
index 0000000..b386e55
Binary files /dev/null and b/DemoAssets/pilot/CC3_Base_Plus_Bake_N.jpeg differ
diff --git a/DemoAssets/pilot/Pilot_BC.jpg b/DemoAssets/pilot/Pilot_BC.jpg
new file mode 100644
index 0000000..0898c17
Binary files /dev/null and b/DemoAssets/pilot/Pilot_BC.jpg differ
diff --git a/DemoAssets/pilot/pilot.fbx b/DemoAssets/pilot/pilot.fbx
new file mode 100644
index 0000000..26e191a
Binary files /dev/null and b/DemoAssets/pilot/pilot.fbx differ
diff --git a/DemoAssets/spiderman/spiderman.fbx b/DemoAssets/spiderman/spiderman.fbx
deleted file mode 100644
index 6ad92cf..0000000
Binary files a/DemoAssets/spiderman/spiderman.fbx and /dev/null differ
diff --git a/DemoAssets/spiderman/spiderman_BC.jpeg b/DemoAssets/spiderman/spiderman_BC.jpeg
deleted file mode 100644
index 618ab7c..0000000
Binary files a/DemoAssets/spiderman/spiderman_BC.jpeg and /dev/null differ