Education edition items have the wrong category. This is not in parity with education edition, since they have categories but at the same time not registered to the creative inventory.

How to reproduce:
Create a compound
See it's category

What I expected:
It would be in items or something

What I saw:
It's category is "craftingScreen.tab.none", which isn't even translated.

Notes:
There are more ways to reproduce this. Elements are not in the "construction" category.