Unidentified item with no name appears in Creative inventory

Summary:

In the "items" section at the very bottom there is a "broken block" that has no name and is not displayed in the hand. He has a few pixels texture in his inventory!

Steps to Reproduce:

1. Create new world with toggle Caves and Cliffs ON.
2. Switch to creative game mode.
3. Go to the "items" / "all" tab
4. Move on to the very last item.
5. Take it.

Observed Results:

You will find an unknown item (empty or broken).

Expected results:

This item should not be in minecraft.

Notes:

When you enable "Education Edition", the item is in the nature tab.

Image:

 Education Edition OFF

Education Edition ON