Recent Update

TomaIsTosik  The point of my suggestion about the content folder is that sometimes, having files inside will make the game think you already have the SDX content installed, so it won't download the new content.  This can happen if the folder doesn't get emptied after the previous SDX download.  It should be emptied when you patch and load the game, since that content is added with the next patch; I'm just saying it occasionally doesn't happen.

If you have an empty content folder, simply open the game and tell it to check for new SDX content, as described.  If you see a message about no new content, or some kind of error, post a screenshot.