This article compiles the most common issues you’re likely to encounter when using ChatGPT: messages that won’t send, file upload/parsing errors, conversations suddenly disappearing, and unstable network access. For each issue, it provides an actionable troubleshooting order, aiming to restore ChatGPT to normal use in as few steps as possible.
Message Send Failure: Stuck Spinning or “Blocked” Prompt
When ChatGPT gets stuck on “Sending” and never finishes, first copy what you typed and back it up locally, then refresh the page and re-enter the conversation to avoid losing your content. Next, check whether you pasted an ultra-long text all at once or included lots of tables/code blocks. It’s recommended to send it in sections, as ChatGPT is more likely to time out with extremely long inputs.
If you’re told the content was blocked or the request couldn’t be completed, first rewrite sensitive terms, reduce strongly binding phrases in your instructions such as “must/absolutely,” and remove unnecessary external links and attachment notes. Finally, try starting a new chat, because overly long context in an old conversation can also make ChatGPT more likely to fail the request.
File Upload Failure: Can’t Select a File or Can’t Parse After Upload
When ChatGPT file uploads fail, the most common cause is browser permissions or a cache issue. First confirm the browser hasn’t disabled the site’s file-access permission, then clear the site’s cache and restart the browser, and return to ChatGPT to upload again.
If the file uploads but the parsing result is incomplete, save the file in a more universal format (for example, convert scanned documents into copyable text, or export complex layouts as plain text or a simplified PDF). Also make your request explicit: asking ChatGPT to “summarize the structure—then extract key points—then output using the template” is more stable than asking it to do everything in one go.
