I have same problem, and not only tatooine but voss, hoth and belsavis too, i did all stuff i only can including reinstalling the game, taking me 4 hours. but every time when my game crash this files just dissapear and i need to delete bitraider and launcher and reinstall themm and even though i've been able to go to hoth i still can get to tatooine, havent tried the other ones
and i dont actualy understand why players must solve that kind of game problems not the developers