Issues i am noticing when making trades
 

I had 4 arctic wyvern hides poof during a trade with a friend, and have had a nepherite gem poof in a trade also, seems to be in velious zone only. anyone noticing this issue?

do they reappear when you log out and back in? on your cursor?

there is a known issue when sometimes a trade is canceled the item will "poof" but will reappear on cursor after a relog

Need more information.

Did you press trade?

Did the trade window close before you pressed trade?

Did one of you move while it was in the trade window?

Did it reappear when you zoned/relogged?

Resolving due to lack of additional info.