Link: http://forums.spiralknights.com/en/node/62855

Since this was a bug I/we discovered during trading I think it is appropriate to make a post here for you guys to know as well. A scary bug.

So I was trading with Echoez, 7k CE for gunner sash max elemental. We did it via steam trade, everything was fine until I discovered in-game what the mail showed wasn't the thing I saw when trading. Something went straight up to my mind: Scam? (he's/she's a great seller!) I told him/her there was something wrong and checked his/her steam inventory, the gunner sash was gone. I checked mine as well, suprisely I saw it 'Max elemental gunner sash' sitting there but in-game is showed some rather random sash with 2 low UVs, I was afraid to accept the mail therefore recorded a video as reference. Took screenies as well. I showed my friends someone said it looks fake? Well I'm not that childish and skillful to fake such a thing.

I had to say when accepting the mail I forgot to hit 'F9' recording hotkey but as you can see in the video that 2UV gunner sash magically turned into the max elemental sash I wanted. I was like "geez pew, that was weird". Anyways due to this scary trade I'm not gonna use steam trade anymore.

Tell me if it's not the place to post, I might close the thread if so.