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ChatGPT FAQ: Uploads stuck, image recognition failures, and disappearing chat history

2/18/2026
ChatGPT

When using ChatGPT to organize materials or analyze images, the most annoying thing isn’t not knowing how to use it—it’s when uploads suddenly get stuck, images can’t be read, and conversation history seems to “evaporate.” Below, I’ll break down several of the most common ChatGPT issues and explain them clearly. Follow the steps to troubleshoot, and you can usually get back to normal in a few minutes.

File upload fails or keeps spinning: check the browser and network first

When ChatGPT uploads get stuck, it’s most often caused by browser cache, extension plugins, or network fluctuations. First, switch to a different browser engine (for example, from some domestic “shell” browsers to Chrome/Edge), then retry in Incognito/Private mode to quickly rule out extension interference.

If it still doesn’t work, try converting the file to a more common format and compressing it or splitting it into smaller parts before uploading again. On corporate or campus networks, ChatGPT may be affected by proxies/firewalls; test with a mobile hotspot to quickly determine whether it’s a network-side issue.

Images can’t be recognized or recognition is inaccurate: source quality matters more than prompts

If ChatGPT can’t understand an image, don’t rush to tweak the prompt—check the image itself first: is it blurry, reflective, is the text too small, or is the screenshot missing edges? Zoom in on the key area, take a new screenshot, and upload it again; the recognition rate will usually improve noticeably.

Also, avoid stuffing too many images at once or using ultra-high-resolution long images, which can easily cause upload failures or incomplete parsing. When you need ChatGPT to read tables or small text in an image, you can explicitly say, “Please transcribe it line by line first, then summarize,” to reduce misreads caused by jumping straight to conclusions.

Chat history disappears: multiple accounts and the history toggle are the easiest pitfalls

If your ChatGPT records are missing, the most common reason is that you’re logged into a different account—especially when the browser has multiple email/third-party login sessions at the same time. Log out and back in, and verify the account information under the avatar; many “missing” cases are actually caused by account switching.

Next, check whether you turned off the chat history and training-related toggle; after it’s turned off, new chats may no longer appear in the history list the way they used to. If the list simply won’t load, refreshing the page, clearing cache, or switching networks and reopening ChatGPT often restores syncing.

Request errors, slow loading, or frequent disconnects: the simplest three-step method

When ChatGPT shows request errors, use the “three-step method” first: refresh the page → re-log in via an incognito window → switch networks. Many issues are due to temporary session expiration or network jitter; following these three steps has a higher success rate than repeatedly hitting Send.

If it stays slow during a certain time period, it may be high server load. Try writing your question in full at once to reduce extra requests from back-and-forth follow-ups. For long text, feed the content to ChatGPT in segments and ask it to “answer in segments with subheadings,” which can also reduce the chance of failures midway.

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