Backpack appears out of nowhere at Ancient Stone Chamber

Bug Name:

Backpack appears out of nowhere at Ancient Stone Chamber​

Bug Description:

Backpack suddenly appeared out of nowhere as I entered Ancient Stone Chamber. I think I bumped into an NPC with a backpack too, not sure. I dont seem to have any way to remove the backpack.

https://imgur.com/a/qgFAUz2

Tried deleting GamezBD>UserCache, did not work. Tried trashing all Trade Manager related items. Still did not work.
https://imgur.com/a/pfUsYxt​

How to reproduce/proof:

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Do you use hedgehogs?
Because next to it there is a cave with a plant that adds weight/backpack.
An icon similar to the plant above Caphras in the inventory.

 

Hey Strand, it's Epikk here! You are using the auto-gather hedgehog. Near the entrance of the Ancient Stone Chamber there is a flower that is a trade item actually. I can't remember exactly the name of it, but all you gotta do it do delete this flower.

 

Thanks for the replies! It was Magical Mandragora https://bddatabase.net/us/item/55851/
Problem Solved!