I've just created a new post on http://italiani.inolanda.info.
This post is supposed to be here: http://italiani.inolanda.info/articoli/annunci-su-italiani-in-olanda/
Opening this link, WordPress shows a different post (actually, the previous one, chronologically speaking), but the title is correct (!!!).
This is not happening with any other post.
I've tried deleting and creating the post: same result.
I've tried editing the post's slug: same result.
I've tried changing the permalink structure (something that I was planning to do anyway): same result.
I've also checked on the MySQL and the record with ID=543 (the one with the right post) shows the right data, as well as the records with post_parent=543.
I don't know what else I can do.
I suppose this will happen with any new post from now on, since deleting and creating a new post doesn't help... but why?