When you craft an item or swapping of items without enough iventory space - the item gets deleted.
- Legacy ID
Make sure you have no inventory space left.
Let one item on the ground.
Take one item in your hands.
Craft an item.
The new item is deleted.
I saw this happening while crafting a courier bag, a rabbit snare and when I was trying to change from a woal coat to a hunting jacket. The wool coat was deleted in the moment I drag and droped the jacket on the body (tryed this twice).