There were a bug where the plugin didn't know the difference between for example: stone and andesite, as andesites is stone with the sub id 3, and the plugin didn't remove the andesite, but still counted it in as stone when selling. So if you had 3 stone and 2 andesite it'll count up to 5 stones and give you the money for all of them, while removing 3 stones.

- This is now patched completely, by using another method of checking between the items.