I checked my install and reinstalled and I have the most recent version of the game but I still can't stock shelves. The game just freezes and my hand is stuck in place.
I had this issue too but as long as I don't pickup the book Jimmy drops then it works fine.
Edit: scratch that, game froze after I played it for a while then when I restarted it, it started doing it again. >:(
it happens when you rush and you press spacebar when you're too far from the shelf
