Missing textures Far Cry Primal (Far Cry: Primal)

When you start the game everything goes fine : no lockups,errors,language is easy to install on Russian,but when you enter the game, the characters disappear of the face....ie remains clothing,weapons and even hair,but the faces somehow no..probyval to depart from the characters - everything is OK,but when you zoom in, here we go again,animals generally disappear from sight,but also in the distance you'll see them.