I have another suggestion you may try, it might work. :3
Uninstall the game from your computer, fully, so no more FH files are there. But before deleting the game I would suggest you to save your screenshots you have taken in your desktop, if you like.
Once you have done saving your screenies and uninstalled the game, reinstall it again. Now, I should tell you that there is nothing wrong with the file so if does not work this time there may be a file missing from it (probably). I do not want to make this complicated anyway, so redownload it and run FH. Tell me how everything turns out and hope this helps. :3