It's me again. And I got another problem that I can't seem to solve. This time it's the castle (it's not a CTD or anything like that) It just I can't place anything inside the castle settlement, I even tried a older save and it still won't work. However, I did try http://www.nexusmods.com/fallout4/mods/10455/?

And before I added this mod into the game a save didn't have this mod. However, after I've added this mod, I've made new saves. I did create a new character (from the CTD problem that I had) I could try the mod where the player can build any red areas....uh...I don't want that mod anyway. I rather have some vanilla game. Anyways, I don't know how to solve this type of problem. I've seen a person that had the same problem but had to use that mod. I rather see green instead of red placement.

Inside the interior of the castle I've tried to build furniture. However, it will just clip beneath the concrete of the castle.