Update app.py

app.py

@@ -321,6 +321,6 @@ with gr.Blocks(title="Reviews → Sentiment → Qwen Actions", theme=gr.themes.S
     btn_clear_csv.click(lambda: (None, None, "Cleared."), inputs=None, outputs=[out_df2, out_file2, status])
 
 # Keep queue enabled so Cancel works reliably
-demo.queue(concurrency_count=1)
+demo.queue()
 if __name__ == "__main__":
     demo.launch()