My Gear Transformed into a different item

I got an error saying “Does not fit in inventory” even though my inventory was empty. I looked online and one suggestion had been to move an equipped item into the inventory to refresh it. When I put my belt into the inventory, at first nothing happened. Then I picked up a unique amulet off the ground and suddenly my 2LP Legendary belt became an arena key with a legendary border. This occured while playing in online mode and inside one of the new cemetery echoes.

Screenshot: https://imgur.com/a/uXMc6R0

Player.log (3.7 MB)

Somehow after closing the game and restarting it, the missing item was visually attached to my mouse as if I was still holding it. I opened my inventory and left clicked and the item was dropped back into my inventory and I was able to re-equip it. Such a relief.