gif not generated when multiple images in page

[user123503]

Describe the bug
when there is multiple images and gifs in one page a zip folder is genereated but the gifs are downloaded as simple images

Expected behavior
A gif is downloaded for each gif in the page

Example work from Pixiv
https://www.pixiv.net/en/artworks/141671975 (warning 18+)

Browser and Version (please complete the following information):
firefox latest version windows 11