In Progress Grinding books

User name: ShadowGeorge

What is your in-game username?
{custom.mcusername}

What server does this bug take place on?
Towny Survival

Title of report
Grinding books

What happens?
I'm trying to use an enchanted book in a grindstone, it won't even let me place the book in the grind stone, I have even tried disconnecting and reconnecting

How to reproduce this bug?
use a grindstone and try an enchanted book in it

Screenshots
(DID NOT ANSWER QUESTION)