Unable to upload pdf file in ChatGPT 4

Unable to upload pdf file in ChatGPT 4.After signing into ChatGPT 4 and attempting to upload a PDF, I keep encountering an error message saying, “Unable to upload pdf file…” This issue persists even though my internet connection is stable, which I infer from my ability to access other sites without interruption. My trials spanned PDFs ranging from 300kB to 3MB, all resulting in the same upload error. I would appreciate assistance in determining the root of this problem. Thank you!

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Did you end up getting this problem fixed? If so, how? I’m currently having the same problem.