Undo some changes to see if I can fix it.

app.py

@@ -160,9 +160,8 @@ demo = gr.Blocks(css=css)
 
 def changing():
     # https://discuss.huggingface.co/t/how-to-programmatically-enable-or-disable-components/52350/4
-    # return gr.Button.update(interactive=True), gr.Button.update(interactive=True)
-    print("changing")
-    return gr.Button(interactive=True), gr.Button(interactive=True)
+    return gr.Button.update(interactive=True), gr.Button.update(interactive=True)
+    # return gr.Button(interactive=True), gr.Button(interactive=True)