WooCommerce Hide Add To Cart Button Until Amount Chosen

Just updated all my plugins.

I have a WooCommerce One Page Checkout set up for donations.

Pre-upgrade:
The Quantity box and Add To Order Button were hidden until you chose a donation amount.

Post-upgrade:
The Quantity box and Add To Order Button are visible before choosing a donation amount.

I would like it to be hidden as it was before upgrading so the only thing you see is DONATION AMOUNT drop down box.

Here is a link to the page as it is now:

Here is a link to a screenshot of what it looked like before upgrading the WooCommerce plugin.

What do I need to do to get this behaving like it was pre-upgrade?