Kal axchanger npc is bugged o.o

Talking to the kal exchanger npc, at the beginning, the screen that appears is the normal one:



Uploaded with ImageShack.us

But when you click to look at the list of items to exchange this is what appears:



Uploaded with ImageShack.us

The screen that appears is the same as the wood processing merchant (Argent 2258-2716) (seemed useless to post a screenshot of this one too).

I hope it can be fixed soon. Thanks for the attention