diff --git a/plotting.py b/plotting.py
index aed3045..7829b11 100644
--- a/plotting.py
+++ b/plotting.py
@@ -319,7 +319,9 @@ if __name__ == "__main__":
         files_to_process = sorted(cutleft_dir.glob("*.jpg"))
 
     try:
-        all_labels = list(filter(None, (base_dir / "labels").read_text().splitlines()))
+        all_labels = sorted(list(filter(None,
+                                        (base_dir / "labels").read_text().splitlines())),
+                            key = natural_key)
     except FileNotFoundError:
         all_labels = []
 
diff --git a/reading_annotations.py b/reading_annotations.py
index e9c55de..1f81259 100644
--- a/reading_annotations.py
+++ b/reading_annotations.py
@@ -158,7 +158,7 @@ def has_significant_notes(note_img, threshold=20):
         print(f"Debug : visible pixels is {visible_pixels}")
     return visible_pixels > threshold
 
-def apply_actions_and_regenerate(root_dir, data, student_id, actions, notes_layer):
+def apply_actions_and_regenerate(root_dir, data, student_id, actions, notes_layer, all_labels):
     """
     Modifies data based on actions, reads bnote.json, cuts notes,
     regenerates all label images for consistency, saves dirty ones,
@@ -221,7 +221,7 @@ def apply_actions_and_regenerate(root_dir, data, student_id, actions, notes_laye
 
     # --- 2. Process Images (Cut notes, Regenerate, Concatenate) ---
     concat_list = []
-    d_notes = {}
+    d_notes = dict.fromkeys(all_labels, "")
 
     # Iterate over images defined in bnote.json to maintain order/geometry
     for img_info in bnote_data.get("images", []):
@@ -289,6 +289,14 @@ if __name__ == "__main__":
 
     root_dir = sys.argv[1]
 
+    try:
+        all_labels = sorted(list(filter(None,
+                                        (Path(root_dir) / "labels")
+                                        .read_text().splitlines())),
+                            key = natural_key)
+    except FileNotFoundError:
+        all_labels = []
+
     # Load original data
     original_data = annotating.make_dictionary(root_dir)
 
@@ -299,6 +307,6 @@ if __name__ == "__main__":
             print(f"Processing annotations for: {student_id}")
             actions, notes = detect_checks_and_notes(bnot_dir)
             if actions or notes:
-                apply_actions_and_regenerate(root_dir, original_data, student_id, actions, notes)
+                apply_actions_and_regenerate(root_dir, original_data, student_id, actions, notes, all_labels)
             else:
                 print("  No changes detected or missing files.")
diff --git a/update_ods.py b/update_ods.py
index 63b0b27..31ad650 100644
--- a/update_ods.py
+++ b/update_ods.py
@@ -15,7 +15,10 @@ def main():
     else:
         work_dir = os.path.abspath(sys.argv[1])
 
-    all_labels = [l for l in (Path(work_dir) / "labels").read_text().split("\n") if l!=""]
+    all_labels = sorted(list(filter(None,
+                                    (Path(work_dir) / "labels")
+                                    .read_text().splitlines())),
+                        key = natural_key)
     a_rendre_path = os.path.join(work_dir, TARGET_DIR_NAME)
 
     if not os.path.isdir(a_rendre_path):