The bug
You can't remove enchantments from enchanted books using the Grindstone block.
You can't remove enchantments from enchanted books using the Grindstone block.
Sam Fox
migrated
Confirmed
Block states, Items
Minecraft 1.14 Pre-Release 2
Minecraft 1.14 Pre-Release 3
Retrieved
The really odd thing is that it still lets you put in the enchanted book, so I doubt this is intentional.