Quote:
Originally Posted by Darklux
I don't think that this will be the last bug or chance, there are always bugs or ways.. it should be technically prevented (like stated before).
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The problem here was that the modifications done by the npcserver were not saved to the account. Introducing unique ids doesn't work for items that can be stacked - either you give one id for each of your 10 million coins or so, or you have the problem that when splitting the coin stack that stuff gets duped or so if the player tricks the system. The only way to prevent it is to make all transactions atomic.