Well, so I have to update all my translated posts by hand and copy the post ID -.-
You can play with the "published date" synchronization in Polylang settings to control that
Yep, I have this activated, but when I write the new post, the old post changes the date to the newer one :/ If I deactivate the option, one post is newer that the other, the same problem. I have to change the date.
It would be nice that, when I click to add a new translation, the post copy the same date of the other lang post (wpml has this option) to not mess up the order of the posts and make the user revise the date and hour and change it manually. -.-
Anyway, great plugin. I like the fact (among others) that Polylang can copy all the other custom tags with synchronization, thing that other plugins doesn't do, btw.
Thanks for your time :)