Update app.py

app.py

@@ -96,11 +96,9 @@ with gr.Blocks() as demo:
                     return
                 global gradio_backend
                 if gradio_backend is None:
-                    yield '(ZeroGPU needs to initialize model under @spaces.GPU, thanks for waiting...)', state, dynamic_trigger
+                    yield history + [gr.ChatMessage(role="assistant", content='(ZeroGPU needs to initialize model under @spaces.GPU, thanks for waiting...)')] , state, dynamic_trigger
                     gradio_backend = GradioBackend()
-                    yield '(finished initialization, responding...)', state, dynamic_trigger
-                waiting_prompt = 'Loading video now... thanks for waiting...'
-                yield history + [gr.ChatMessage(role="assistant", content=waiting_prompt)], state, dynamic_trigger
+                yield history + [gr.ChatMessage(role="assistant", content='Loading video now... thanks for waiting...')], state, dynamic_trigger
                 if not js_monitor:
                     video_state['video_timestamp'] = 19260817 # 👓
                 state.update(video_state)