Can anyone currently get Gemini 3.1 Pro to generate actual downloadable files? (Mine stopped - Family Plan)

Hey everyone,

I'm currently on a Gemini Family plan using 3.1 Pro, and I'm dealing with a really frustrating issue. Up until recently, I was able to get Gemini to generate downloadable .docx and .txt files directly in the chat window. It would use its sandbox environment, generate the file, and I could view/download it right there. It was a massive part of my workflow.

Suddenly, out of nowhere, the capability is just gone.

I’ve tried opening over 10 new chats hoping a fresh session would fix it, but no luck. When I directly asked Gemini why it couldn't do it anymore, it gave me a canned response stating that "sandbox resources for file generation are automatically allocated by the system." It claimed that I can no longer control this via prompts, and therefore it cannot fulfill my request.

Has anyone else run into this exact situation recently? Is this a temporary backend resource throttle, or did Google actually nerf this feature?

More importantly—does anyone have a workaround or a specific prompt structure to force the sandbox to allocate those resources and generate files again?

Any insights would be hugely appreciated!