basegame body sliders not working

hey all, so it seems that a recent update (i think) has screwed up with my cas and keeps my sliders in one place and i can't change it, if that makes sense. i do use mods but i haven't had this issue before so i'm not thinking its one of my mods, and i do not have any mod sliders. if anybody knows how to fix this issue it would be greatly appreciated if you would tell me how to fix it. 

my laptop is a macbook air. 

if you need any other info i will be willing to give you it, thank you.