I have configured a process for asking some questions about a document using Ask GPT activity. It was working well and then, without changing anything, it stopped working. Now it only gives a blank response from the activity, even though I can plot the questions and the text and everything seems to be correct. I have even tried to replicate the steps in this video: https://youtu.be/lP1nPYk217k?si=ib6EPKt591MUTHVy and what is working for him does not do it for me.
Any advise?