Single image [grid] works in preview but not in cooked

Contribute Bug
16

I can’t give you guys any help but telling that I get nothing too when there is just one single image generated.

HTML 
<details>
  <summary>Luo kuva</summary>
  <p>
    A photograph of a cup of coffee
  </p>
</details>
<div class="d-image-grid">
<p><img src="https://cdnfoorumi.katiska.eu/original/2X/0/0b0a30b47b96cc8581c6b1117112b1b1e4b85139.jpeg" alt="A photograph of a cup of coffee" data-base62-sha1="1zF5fyN9IUn8LDKGq0cQV79IIVH" width="256" height="256"></p>
</div>