ChatGPT cannot read attached pdf

I have been using chatgpt to help me read papers for months. But today it just says that it cannot read the attached pdf. I have searched the forum and still cannot solve the problem. Does anyone know how to fix it?

I tried different models, including GPT-4 and 4o. They reply the same.

I can upload a blank image and then re-upload the file to read the paper normally. But I don’t know why it works this way. Maybe it’s a problem with the backend database?

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Works for me with model GPT 4o using ChatGPT Windows Desktop App

Downloaded file https://arxiv.org/pdf/1409.4842
With ChatGPT used Attach file (paper clip icon)
Prompt: please read this pdf and summarize

Worked as expected.

I don’t plan to erase the share in the next few hours, after that no promises.

Same here. The crazy thing is that when I use a free version that I have access to, the file upload and reading works just fine. This free version has access to ChatGPT 4 for a limited time only.

Hello, i’ve managed to find a fix or some sense of why it might not be able to read the pdf, apparently there could be some update in chatgpt, so somehow the AdBlock or if ur using brave, Anti-shield could be affecting chatgpt, so i was speaking with chatgpt and why it couldn’t read and after several convos with chatgpt, i’ve managed to turn the anti-shield off and then i re-tested and it worked.

Mine gotcorrect after taking a screenshot on ChatGPT telling me your message is blank and sending back to it and I said no this is not blank, and then it suddenly started reading my document