was using LunalPixel's "Better Minecraft - Fabric - BMC2 - 1.20.1"

Backpack vanished. When I noticed it gone, was when I had just built a Backpack Shelf from the "Backpacked" mod.

Can confirm this is an issue. Crafted a backpack shelf from backpacked mod today and when I click the shelf with a backpack from inmis in my hand, it "deleted" the backpack from inmis that was in the trinket slot that had all my precious stuff in... real bummer... so put an empty backpack in the trinket slot and tried clicking the backpack shelf with an empty hand and again the backpack was removed/deleted from the trinket slot. Any way to figure out if it is possible to get that backpack back?