Copilot no longer able to read PDFs

Just yesterday, I was able to have copilot perform summaries on my work documents for google docs that I use to conduct interviews. But today, it no longer is working. I attempted to download the document as a PDF and do it again, but it also failed. I was wondering if anyone else is having similar issues. Or if Copilot had taken away this feature to prepare for a premium/paid feature.