I have recently noticed the problem that I cannot mod any weapons in the game, even the vanilla weapons with the vanilla weapon mods. To narrow it down, I cannot even open the mod-menu on my pip-boy. Weirdly specific, right? I have turned all of my game mods off, even the DLC. I have checked all the keys of my keyboard just in case it was mis-mapped. I have uninstalled and reinstalled the game. And yet I still cannot mod even the varmint rifle with a night-vision scope. Any ideas?