iTunes Connect doesn't recognize iBooks update

Hi,

I'm trying to update an eBook (created with iBooks Author, .iba format) to the 1.2 version.

I follow all the steps correctly with iTunes Producer, it finished uploading and I hear the signal and see the window saying that everything went good.

But after that, nothing happens, iTunes Connect doesn't recognize any update so it turns out I have a book out of control.

It's very strange, as 3 weeks ago I updated another different book and I didn't have any problem.

Is there is something wrong with Apple Servers? Am I doing anything wrong?

Thanks for your help!