My friends, this issue is not letting me sleep! Let's see of anybody can help. :)
I create the page templates with the usual comment on its top:
<?php /** * Template name: <Template name> */ ?>
Then I save the wished pages with the template. All good until now.
The thing is that I have one template that stops working all of a sudden sometimes. The page that uses it decides to start using the default page template instead. And if I go to the edit form of this page and click "Update" everything goes back to normal.
It looks like a WP bug, I haven't foud anyone with problem. Have you guys seen it yet?