I disabled a couple of annoying enchantments mid-world and ended up with blank enchanted books in a few of my chests, and upon trying to search in them the game crashes.
I understand this isn't a normal case where you get blank books, but just thought I'd let you know.

• Crash Report

Note for reproduction: these glitched books can be obtained with /give @p minecraft:enchanted_book 1 0 {StoredEnchantments:[{id:999,lvl:1}]}, assuming of course 999 does not correspond to a real enchantment ID.