I have just installed a new multisite WP test site.
I created two sites, one called 'es' the other 'en' so my structure looks like this:
In my settings I have chosen Spanish for the es site and English for the en site. I then ticked the Multilingual blog relationships option.
Now when I look at my sites in my Network Admin es and en show they are interlinked.
Now I create a simple post and a simple page in en - they are copied as drafts to es and I publish them.
So it all looks great but when I go to mysite.com/public/es/mypage its all in English - no translation occurs.
Can you tell me what I did wrong?