Minecraft version - 1.19.2
Mod loader - Forge
Mod version - 43.4.4
I am using the latest version available - Yes

Describe the bug
When you have a backpack with refill configured for an item to go to my Off hand slot, however, when you equip a special melee (Two-Handed Melee )Ex: Nightmare scythe from born in chaos) that makes the "Off hand Hot Bar" disappear, it makes the refill upgrade use up all the totems and they go nowhere, so there is no way to use off hand refill and better combat with meless from born in chaos for example. This also happens with other Two-handed Melees from other mods (Simply Swords a nice exemple)

To Reproduce
Steps to reproduce the behavior:

1. Have installed Born in chaos (or other mod that add Two-Handed swords)
2. Add the Refill upgrade inside the backpack and configure an item to refill "Off Hand Slot"
3. With the upgrade Refilling the Off Hand slot, grab a Nightmare Scythe from born in chaos for exemple
4. Open the backpack and you will see the items (for me i used totems) disappearing pretty fast

Expected behavior
Despite the animation when you handle the twohanded (nightmare scythe) making the Off Hand Hotbar disappear, and also the totem disappearing from the hand of the character animation, i expected to it not interfere or conflict with the backpack mod, making bad to play with these two mods, because of the important items such as Totems, wasting and going nowhere and so

Screenshots or video recordings
(https://streamable.com/i8950y)

Additional context
Born in chaos mod doesn't conflict with any of the two mods, it was used as example in this case of this glitch that happens with the 2 handed swords, conflicting with refill upgrade, and this is a problem to other mods too.

What exactly is the expected action here?