Fix

app.py

@@ -1049,16 +1049,14 @@ with gr.Blocks(title="SAM3", theme=Soft(primary_hue="blue", secondary_hue="rose"
     def _sync_obj_id(s: AppState, oid):
         if s is not None and oid is not None:
             s.current_obj_id = int(oid)
-        return gr.update()
 
-    obj_id_inp.change(fn=_sync_obj_id, inputs=[app_state, obj_id_inp], outputs=[])
+    obj_id_inp.change(fn=_sync_obj_id, inputs=[app_state, obj_id_inp])
 
     def _sync_label(s: AppState, lab: str):
         if s is not None and lab is not None:
             s.current_label = str(lab)
-        return gr.update()
 
-    label_radio.change(fn=_sync_label, inputs=[app_state, label_radio], outputs=[])
+    label_radio.change(fn=_sync_label, inputs=[app_state, label_radio])
 
     def _sync_prompt_type(s: AppState, val: str):
         if s is not None and val is not None: