This is a discussion on WTf within the Media forums, part of the Knight Online (ko4life.com) category; Wtf...
It happens sometimes when you right click on an empty slot in which an item which you were upgrading is supposed to be (instead of clicking on the item in the anvil first, so it gets back into its inventory slot). No biggie.
just a bugg -_-
so THATS how they dupe...zzzz, wish i woulda known that earlier to stack items..lol, yea visual bug, ive gotten that before where i had like 9000 shard +1's stacked right next to my 9000 arrows,lol