Just the default WP gallery.
And also, the post had a WP media gallery in the body and it seems like that made the post not show. The post page was blank and showed the same jQuery Hoverintent error. As soon as I removed the WP media gallery, the post worked. When I viewed the HTML source I noticed that the HTML is incomplete. It ends with the following tag:
<!–POST CONTENT START–>
<div class=”thn_post_wrap”>
I found the bug. The post didn’t have a highlighted image and that made the whole widget crash. That must be a bug in the theme?
I tried reinstalling the theme and that worked, but then I posted a new post and it stopped working again.