Set concurrency_limit for stream to 1 to prevent overlapping executions

src/app.py

@@ -208,7 +208,7 @@ with gr.Blocks(
                     ReplyOnPause(translate_audio),
                     inputs=[audio, target_lang],
                     outputs=[audio],
-                    # concurrency_limit=20 if get_space() else None,
+                    concurrency_limit=1,  # Important: Set to 1 to prevent overlapping executions
                 )
 
     # Sticky footer (will stay at bottom on all screen sizes)