Tried this with backpacks, not sure if its backpack specific or any curio compatible item.

Sophisticated backpacks vs traveler's backpacks:
crash-2024-09-08_14.34.31-client.txt
crash-2024-09-08_14.12.13-client.txt

This is between Cold Sweat and Legendary Tooltips; not Curios. You also appear to be using an outdated version of that mod. If you update, the issue should be resolved.