Animations Barefoot footstep bug?

So have anyone else heard that after some time playing/shooting up the place your character's barefoot footstep sounds are replaced by shoes sounds? I know it's a minor bug but after some time it bugged me. Why would that happen? Has the game forgot I'm wearing no shoes? Because if you go back to your wardrobe and select none to footwear (even though you are already wearing none) the barefoot footsteps sound play again.
Anyways, has anyone else been able to reproduce the same bug is it a me problem? Can a easy patch or fix be made? Thanks!