Crafting Signatures

[BLaCKnBLu3B3RRY]

you can open up the market board and look at non-stackable items that can ONLY be crafted. and you can find several of them won't have the signature. i don't know if it is a bug, (done randomly and can't be reproduced) or maybe a glitch. (and someone just isn't sharing) but i do know that it is somehow possible. however, i have never personally had it occur on any items crafted by myself.