# Why does my optimized BlitzBear article still show old text that I expected to be replaced?

After optimizing an article with BlitzBear, we recommend previewing the changes to ensure quality.

For example, take a look at the image below. The left-side *Before* version shows the initial introduction paragraph highlighted in red. On the right-side *After* version, the new introduction paragraph is highlighted in blue, however the old introduction paragraph still remains.

To resolve this, you should manually remove the old paragraph in your CMS when making changes to your article.

<figure><img src="/files/SyVWf7KYvvIceORi2eqq" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
This issue occurs due to current limitations with AI models. As LLM technology progresses, we anticipate this to be resolved over time.
{% endhint %}


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