Previously I had a question regarding one of the lectures, so I posted a question on the forum page. Then, on my question page, when I wrote a reply and clicked the ‘submit’ button, the message I wrote suddenly disappeared, and I’m not sure whether it’s uploaded properly since I can’t view it. I also tried viewing the responses I wrote via another browser, but it still doesn’t work. When I tried to upload the same reply, the system reports that the same content has already been uploaded, so I can’t make another attempt. Please let me know why this is happening. Thank you.
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