Possible to scam due trading transaction via trading homepage

10 Minutes ago i traded a stellar amulet.

The trading partner put in the 4 stacks of ex orbs

3x 20
1x 15

i hovered over the stacks to agree -> both agreed the trade

after trading i got no stacks in my inventory.

Maybe there is a chance to recap the transaction to get to know, if it was a bug, or a scam.