My ChatGPT 4o mobile app insists it cannot make documents

I used to be able to talk to ChatGPT on my phone and tell it exactly how I wanted a document, then download it on my computer. Now the mobile app insists it cannot create documents. Although I am logged into the same account on my phone and computer, ChatGPT on my computer says it can create documents. I am supposed to give a presentation on this and suddenly it doesn’t work. Is anyone else experiencing this?!? OpenAI, please fix this!