Broken behavior on pixiv.net

[lakitu13]

Recent changes on pixiv.net makes autopagerize load new pages incorrectly.
A new advertisement for the site's premium features on popular tag searches makes the new page load on top of the elements of the previous page. It works fine on tag searches without the advertisement.
Advertisement:

Broken behavior:

Example search where this happens: https://www.pixiv.net/search.php?s_mode=s_tag_full&word=%E7%A7%81%E3%81%8C%E3%83%A2%E3%83%86%E3%81%AA%E3%81%84%E3%81%AE%E3%81%AF%E3%81%A9%E3%81%86%E8%80%83%E3%81%88%E3%81%A6%E3%82%82%E3%81%8A%E5%89%8D%E3%82%89%E3%81%8C%E6%82%AA%E3%81%84!&order=date_d&mode=safe
Example search where it does not happen: https://www.pixiv.net/search.php?word=splatoon&order=date_d&mode=safe