> For the complete documentation index, see [llms.txt](https://docs.myvega.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.myvega.ai/support-documentation/how-to-guides/common-mistakes-in-question-extraction-and-how-to-fix-them.md).

# Common Mistakes in Question Extraction (And How to Fix Them)

Even though VEGA AI does a great job extracting questions, some formatting issues and small errors can happen especially when working with PDFs or scanned documents.

Here’s a complete list of the most common mistakes, how often they happen, and what you can do to fix or avoid them.

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### Formatting & Layout Issues

<table data-header-hidden><thead><tr><th></th><th></th><th width="121.91796875"></th><th width="188.6484375"></th><th></th></tr></thead><tbody><tr><td><strong>Issue</strong></td><td><strong>What Happens</strong></td><td><strong>How Often?</strong></td><td><strong>How to Fix</strong></td><td><strong>Things to Watch Out For</strong></td></tr><tr><td><strong>1. Italics Not Detected</strong></td><td>Italic words don’t appear italic after upload.</td><td>~95%</td><td>Use <code>*this is italic*</code> in the editor.</td><td>Italics won’t show up from PDFs. Add formatting yourself using LaTeX or manually.</td></tr><tr><td><strong>2. Bold Not Detected</strong></td><td>Bold text becomes regular text.</td><td>~95%</td><td>Use <code>**this is bold**</code> in the editor.</td><td>Bold words may lose meaning. Add bold formatting manually.</td></tr><tr><td><strong>3. Underline Not Detected</strong></td><td>Underlined words are not preserved.</td><td>~95%</td><td>Use <code>\underline{your text}</code> with LaTeX or in Mathpix.</td><td>Important underlined parts might go missing. Always re-check and add them back.</td></tr><tr><td><strong>4. Fill in the Blanks Misformatted</strong></td><td>Blanks appear as <code>{qquad}</code> instead of empty lines.</td><td>~95%</td><td>Replace <code>{qquad}</code> with <code>__________</code>.</td><td><code>{qquad}</code> is hard to read. Always replace with blank lines manually.</td></tr></tbody></table>

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### Answer & Option Accuracy Issues

| **Issue**                             | **What Happens**                                  | **How Often?** | **How to Fix**                                | **Things to Watch Out For**                                                                         |
| ------------------------------------- | ------------------------------------------------- | -------------- | --------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| **5. Wrong Option Marked as Correct** | The AI may mark the wrong option as correct.      | \~30–40%       | Double-check with your original answer key.   | Never assume the AI-selected answer is right. Always verify.                                        |
| **6. Incorrect Solution Generated**   | The explanation doesn’t match the correct answer. | \~40–50%       | Review and rewrite the explanation if needed. | AI explains the answer you select as correct — if that’s wrong, the explanation will also be wrong. |

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### Tagging & Categorization Issues

| **Issue**                     | **What Happens**                                             | **How Often?** | **How to Fix**                                           | **Things to Watch Out For**                                                      |
| ----------------------------- | ------------------------------------------------------------ | -------------- | -------------------------------------------------------- | -------------------------------------------------------------------------------- |
| **7. Wrong Subject or Topic** | The question is placed in the wrong subject or has no topic. | \~40%          | Choose the correct subject/topic manually in the editor. | Especially important for mixed-topic questions. Check and update tags carefully. |

***

### Image & Option Issues

| **Issue**                               | **What Happens**                          | **How Often?** | **How to Fix**                                              | **Things to Watch Out For**                                                 |
| --------------------------------------- | ----------------------------------------- | -------------- | ----------------------------------------------------------- | --------------------------------------------------------------------------- |
| **8. Image Not Extracted Properly**     | Images might not appear or may be blurry. | \~0–5%         | Upload the image again directly while editing the question. | Always **preview** the question and make sure images are showing correctly. |
| **9. Options Missing After Extraction** | One or more choices don’t show up.        | \~2–3%         | Use the "Edit Question" tool to add missing options.        | Do a quick check of every question’s options before saving.                 |

***

### ✅ Best Practices

* **Choose correct question type** before uploading or extracting.
* **Preview and verify** all extracted questions — never assume correctness.
* **Avoid uploading cluttered PDFs**; one clean question per image/page works best.
* **Use LaTeX/Markdown** to fix visual formatting where needed.
* **Tag subject/topic accurately** to organize and locate questions efficiently.
* **Follow optimal extraction guidelines** to minimize errors and maximize accuracy.