Steps to Reproduce:

1. Open Creative inventory.
2. Change to the "search" tab of the inventory.
3. Hover to any item on your hotbar.
4. Change to any other tab of the inventory and hover to the same item or other item.

Observed Results:
When hovering an item with the "search" tab of the inventory active, the item displays its category ("Nature", etc) inside the inventory, for the player know where to find it in creative.

If instead you hover it without the "search" tab active it will not show its category making harder to the player to know where to find it when not knowing the item / block's name.

Expected Results:
When hovering an item it should display its category inside the inventory all the time.