.

app.py

@@ -338,7 +338,7 @@ def start(_, calibrate_prompts, user_id, request: gr.Request):
 
     return [
             gr.Button(value='Like (L)', interactive=True), 
-            gr.Button(value=bg_check, interactive=False, visible=False, every=.1), 
+            gr.Button(value=background_next_image, interactive=False, visible=False, every=.1), 
             gr.Button(value='Dislike (A)', interactive=True),
             gr.Button(value='Start', interactive=False),
             image,