ok at first that preston guy in sanctuary get bugged and i cant speak with him

and in the Thicket Excavations is huge graphic glitch what i didnt saw for my whole life all the are is builded from huge cement blocks ghost textures

didnt have the Preston one, but the Thicket Excavation is a load right texture issue. just save there and reset the game it will fix it. (no the first time that happen on a Bethesda game)