Custom GPT: “Content failed to load” when switching models

I can confirm that it looks like OpenAI fixed it. However, I want to note that when I set the model to use Instant, it does not make API calls. The Thinking model does work for API calls though. o3: Works 5.2 Instant: Does not work 5.2 Thinking: Works Latest model Instant: Does not work Latest model Thinking: Works Can someone else in this thread please confirm that they’re seeing this behavior as well?