Problem moving npcs with physgun?

first off this started out of the blue, i don’t recall getting any mods that could possibly do this but anyways i used to be able to physgun npcs if they got stuck in each other, however now it acts as if they’re part of the map and i cant physgun them, any idea what, if any, addon it could possibly be even though i havent gotten any for this purpose http://img163.imageshack.us/img163/7199/addonfolder.jpg there’s my folder