I tried trading some items between my characters in my apartment and didn't realize one of the characters couldn't carry them all. Some items were dropped and easily retrieved but others seem to have disappeared or got dropped somewhere unreachable, I don't know exactly what happened to the items but they're gone.
It was a very big trade with over 150 items, all rare parts, roughly 15-20 parts have disappeared to this bug, the others are safe and still in my possession.
The parts that disappeared were all unidentified L parts, is there any chance of these items being returned? I don't know if there's any way of tracking that. In any case this trading thing should be looked at and fixed so items don't disappear when a character gets overloaded after accepting a trade. Either all the excess items should be dropping normally or better yet the trade should not be completed if it would cause a player to be overloaded.
My guess is the "disappeared" items were dropped but because there were too many of them, some went through the floor or walls and ended up somewhere players can't get to. This is just a guess, of course I don't really know why the bug happens.