diff --git a/openreal2sim/motion/modules/demo_motion_process.py b/openreal2sim/motion/modules/demo_motion_process.py
index 08e439f..3c82220 100644
--- a/openreal2sim/motion/modules/demo_motion_process.py
+++ b/openreal2sim/motion/modules/demo_motion_process.py
@@ -252,7 +252,7 @@ def demo_motion_process(keys, key_scene_dicts, key_cfgs):
         manipulated_trajs = np.load(manipulated_trajs_path)
         object_masks = build_mask_array(int(max_placement_oid), scene_dict)
         hand_masks = scene_dict["motion"]["hand_masks"]
-        first_frame = scene_dict["info"]["start_frame_idx"]
+        first_frame = 0
         first_frame = refine_first_frame(hand_masks, object_masks, first_frame)
         end_frame = refine_end_frame(hand_masks, object_masks)
         print(f"End frame: {end_frame}")
diff --git a/tasks/demo_video/.asset_hash b/tasks/demo_video/.asset_hash
deleted file mode 100644
index b33f83a..0000000
--- a/tasks/demo_video/.asset_hash
+++ /dev/null
@@ -1 +0,0 @@
-9b78ef35230774e636e844af3c970222
\ No newline at end of file
diff --git a/tasks/demo_video/1_pen_optimized.usd b/tasks/demo_video/1_pen_optimized.usd
deleted file mode 100644
index ab0bee2..0000000
Binary files a/tasks/demo_video/1_pen_optimized.usd and /dev/null differ
diff --git a/tasks/demo_video/background.glb b/tasks/demo_video/background.glb
deleted file mode 100644
index a78bd22..0000000
Binary files a/tasks/demo_video/background.glb and /dev/null differ
diff --git a/tasks/demo_video/background.usd b/tasks/demo_video/background.usd
deleted file mode 100644
index 88da644..0000000
Binary files a/tasks/demo_video/background.usd and /dev/null differ
diff --git a/tasks/demo_video/bg_rgb.jpg b/tasks/demo_video/bg_rgb.jpg
deleted file mode 100644
index d686762..0000000
Binary files a/tasks/demo_video/bg_rgb.jpg and /dev/null differ
diff --git a/tasks/demo_video/config.yaml b/tasks/demo_video/config.yaml
deleted file mode 100644
index ab9de4a..0000000
--- a/tasks/demo_video/config.yaml
+++ /dev/null
@@ -1,47 +0,0 @@
-asset_path: /app/outputs/demo_video/simulation/1_pen_optimized.glb
-usd_dir: /app/outputs/demo_video/simulation
-usd_file_name: 1_pen_optimized.usd
-force_usd_conversion: true
-make_instanceable: false
-mass_props:
-  mass: 1.0
-  density: null
-rigid_props:
-  rigid_body_enabled: null
-  kinematic_enabled: false
-  disable_gravity: false
-  linear_damping: null
-  angular_damping: null
-  max_linear_velocity: null
-  max_angular_velocity: null
-  max_depenetration_velocity: null
-  max_contact_impulse: null
-  enable_gyroscopic_forces: null
-  retain_accelerations: null
-  solver_position_iteration_count: null
-  solver_velocity_iteration_count: null
-  sleep_threshold: null
-  stabilization_threshold: null
-collision_props:
-  collision_enabled: true
-  contact_offset: 0.006
-  rest_offset: -0.002
-  torsional_patch_radius: 0.05
-  min_torsional_patch_radius: 0.005
-collision_approximation: convexDecomposition
-translation: !!python/tuple
-- 0.0
-- 0.0
-- 0.0
-rotation: !!python/tuple
-- 1.0
-- 0.0
-- 0.0
-- 0.0
-scale: !!python/tuple
-- 1.0
-- 1.0
-- 1.0
-##
-# Generated by MeshConverter on 2025-11-29 at 20:32:27.
-##
diff --git a/tasks/demo_video/object_1.glb b/tasks/demo_video/object_1.glb
deleted file mode 100644
index 5265fca..0000000
Binary files a/tasks/demo_video/object_1.glb and /dev/null differ