Update app.py

app.py

@@ -296,12 +296,12 @@ with gr.Blocks(delete_cache=(600, 600)) as demo:
         inputs=[image_prompt, seed, ss_guidance_strength, ss_sampling_steps, slat_guidance_strength, slat_sampling_steps],
         outputs=[output_buf, video_output],
     ).then(
-        lambda: tuple([gr.Button(interactive=True), gr.Button(interactive=True)]),
+        lambda: gr.Button(interactive=True),
         outputs=[extract_glb_btn],
     )
 
     video_output.clear(
-        lambda: tuple([gr.Button(interactive=False), gr.Button(interactive=False)]),
+        lambda: gr.Button(interactive=False),
         outputs=[extract_glb_btn],
     )