Items leaving inventory are not identified

[@AlphaLemming]

If a item is destroyed,refined,moved to other bag, the events deliver no response about the bagId and slotId.
Only if moved in a valid bag there is a second response with the new bagId/slotId but not the old.

Is there a way to identify the item which was destroyed/moved?

Up to now i made a snapshot of the whole inventory at login with all valid items and compare it with new inventory after a event was fired. But this is not 100% secure...
Any ideas?