Suddenly, 2 users of my blog aren't seen the "POSTS" button anymore. I haven't changed anything in their permissions or in the blog itself. I updated WordPress and all my plugins to the latest version to try to solve it and the problem is still there. Strangely, other users with the same permissions are having no problems.
I created a test user with the same permissions as them and it's working as it should, this is what I'm seeing: http://i.imgur.com/m7WpJ.png
Now, this is what they are seeing: http://i.imgur.com/cOJ4s.png
I even tried setting one of them as admin and nothing changed. Tried looking into the database itself and found nothing.
Thanks in advance.