Game Mechanics: Trading Loss

[SevenFourTwo]

Hi.
I was trading my gear over to my brother's bard.
Powar(me) Jinling(brother)
Just a full banded and weapons and a couple of rings.
I had traded my bladed thulian claws and barbed leather whip along with some banded and a cutthroat insignia ring.
I had now room and two fell on the ground.
When I picked them up, I got a duplicate banded arm peice, and a duplicate ring, however I lost my two weapons.
Had it been banded I wouldn't make the post, but I just need the weapons.

So just a trade bug I suppose, I ended up with dupes.

Thanks for reading, I don't know if there's anything you can do for me, but it'll be good to fix it for future people.

EDIT!:
I zoned, and it fixed it.
Thanks anyway, All is returned.
I suppose it's still an issue.