The bug
Non-enchantable items like the grindstone can be put in an enchanting table. It is expected that the item would not be able to be put into the enchanting table.
Attachments
Comments 14
Can confirm this in 21w39a. Here are some extra details regarding this problem.
The Bug:
Non-enchantable items can be placed inside enchanting tables.
Steps to Reproduce:
Place down an enchanting table and obtain a non-enchantable item, for example, bread.
Attempt to place the non-enchantable item inside of the enchanting table.
Observed Behavior:
Non-enchantable items can be placed inside enchanting tables.
Expected Behavior:
Non-enchantable items would not be able to be placed inside enchanting tables, just like how items that can't be used as fuel sources in furnaces, cannot be placed in the fuel slot.
Can confirm in 21w03a.