Traveler's Backpack inventory inaccessible when worn on back

[Yotimoto]

Description

If the traveler's backpack is in your inventory, items are accessible during battle. When you wear the backpack, however, items are no longer show up during battle.

How to reproduce

Steps to reproduce the behavior:

1. Wear a traveler's backpack
2. Insert desired pixelmon items (I used Great Balls)
3. Start a battle, then navigate to pokeballs

Context

Pixelmon Version: 9.1.10
PixelTweaks Version: 1.10.0
Server or Single Player: Single Player

Additional Context:

Traveler's Backpack Version: 5.4.51