I had trouble only with Page title in <head>. All languages were together. Couldn't find the solution so i dropped to wpseo core files. In frontend/class-frontend.php line 308 goes like this:
} else if ( is_singular() ) {
$title = $this->get_content_title();
if ( empty( $title ) )
$title_part = $original_title;
}So in front of this elseif statement i added elseif that only applies to pages.
} else if ( is_page() ) {
global $q_config;
$title = qtrans_use($q_config['language'], $this->get_content_title(), true);
}And this fixed problem.
I apologize because i didn't read posts above, but i just wanted to share this. :D