Try changing interactive state another different way

app.py

@@ -78,9 +78,8 @@ def gallery_selected(evt: gr.SelectData):
 
     :return: index of the currently selected image
     """
-    proceed_button.interactive = gr.Button(interactive=evt.selected)
     print(f"Index: {evt.index}, Value: {evt.value}, Selected: {evt.selected}")
-    return evt.index
+    return evt.index, gr.Button(interactive=evt.selected)
 
 
 if __name__ == "__main__":
@@ -115,7 +114,7 @@ if __name__ == "__main__":
 
         # --- YOLOS --- #
         yolos_submit.click(detect_objects, [yolos_input], yolos_output)
-        yolos_output.select(gallery_selected, None, yolos_selected)
+        yolos_output.change(gallery_selected, None, [yolos_selected, proceed_button])
 
         # --- Moondream --- #
         moon_submit.click(answer_question, [moon_img, moon_prompt], moon_output)