Copilot File Downloads Expire Immediately – Error Across App, Browser, and Incognito

Hi, I’m running into a recurring issue when Copilot generates downloadable files. Every time I try to download the file (almost immediately), I get the following error message:

“File unavailable. Generated files expire after a short period. Please regenerate if needed.”

This happens consistently, even when I regenerate the file multiple times.

I’ve tested this in several places and the issue is the same everywhere:

• Copilot App
• Browser version
• Incognito / Private mode

The file appears for a moment, then instantly becomes unavailable. I’m unable to download anything before it expires.

Is this a known issue, and is there a workaround?

Thanks in advance for any guidance.