Update app.py

app.py

@@ -320,7 +320,7 @@ def scheduler_swap_callback(pipeline, step_index, timestep, callback_kwargs):
             prompt_embeds = callback_kwargs["prompt_embeds"]
             prompt_embeds = prompt_embeds.chunk(2)[-1]
                 # update guidance_scale and prompt_embeds
-            pipeline._guidance_scale = new_scale
+            pipeline._guidance_scale = 0.0
             callback_kwargs["prompt_embeds"] = prompt_embeds
     return callback_kwargs