Add to Cart Buttons Gone...

I just applied the upgrade from 2.0.15 to 2.1.1 and noticed that my add to cart buttons where done. WTH!

Is there a new setting, feature or something that would cause that to occur. I checked the forums but could not find anything on that. I had to revert the cart back to 2.0.15 to get them to show up again.

Any help on this would be appreciated.