I’ve tried edit the problematic post, wipe out all the content and upload a new image. The theme’s Fancybox still won’t work on that post.
I’ve also tried create a new post and then copy all the contents to it. The theme’s Fancybox works fine in that case. The only thing I did to the problematic post that I didn’t do on others is that I’d changed the permalink of that post a time. Does that related to the problem?
By the way, sorry about my bad English.
