Unable to drop, trade, set up a shop, or duey

Apparently, there's a new meso exploit out. According to a friend, the old one worked by hacking the donation boxes to think that you were giving them -2.1bil mesos, and then you'd end up with 2.1bil mesos in your inventory. The new one supposedly works by tricking tatamo into thinking you're giving him -2.8k manon tails then receiving the manon tails and NPCing them. Try not to sell highly-priced items in the FM until this is fixed ><

I'm honestly surprised it took them this long to get the new exploit up and running.
First thing I thought of when I heard how the last exploit worked was what other npcs use a similar function.

Thanks for the heads-up --- shop is not going up tonight.