The game does not scroll up or down while carrying a resource pack or behavior pack in the create new world screen

The game does not scroll up or down while carrying a resource pack or behavior pack in the create new world screen.

How to reproduce:

1. Go to the create new world screen
2. Activate a lot of resource packs or behavior packs
3. Pick up a pack and move it down or up
4. Observe the game not scrolling down or up while moving the pack

Observed results:

The game does not scroll up or down

Expected results:

The game should scroll up and down