I know it sucks and is usually last resort, but perhaps you should try reinstalling the game. A couple things could be happening.
1. If you recently updated the game from the older version, try removing ALL old FH files before reinstalling as they could be corrupting the new download
2. The game may not have installed correctly, i.e. files may have been corrupted, misplaced, or not downloaded at all
If the game has worked fine for you previously and this is a new issue come up out of nowhere, and you're positive you haven't downloaded anything for FH (this includes maps, items, markings, mods, presets, textures, etc.), then a reinstall may be the best solution.
If you just installed the update, make sure you remove ALL (as stated above) of your old FH files before reinstalling.
HOWEVER: If you have in fact downloaded anything as listed above (maps, presets, etc.), please let us know as this can further help us help you.