Enchantment table no longer works

When opening an enchantment table and placing a normal item + lapis in it, no enchants show up, even with multiple bookshelves around it.

 

https://gyazo.com/2ac8f9435fc97c74a4c39bb46069c631

https://gyazo.com/7ef8832b482dbd16b806a7811b064ced