Trade bug [with screenshots]

This happens fairly often when I've got multiple trade slots being used. In this instance, I went to put some brews up for sale in the trade office.

http://thefauxreal.net/img/tradebug1.jpg

Well that's wierd... the 9 gold slot is already being used shouldn't it be 12? When I list the trade, it only charges me 9 gold but then...

http://thefauxreal.net/img/tradebug2.jpg

It doesn't actually show me the trade I just added. Other people will tell me it's in the trade office but I'm not able to see it under the Selling tab until one of my lots (any lot, not necessarily the bugged one) sells.

http://thefauxreal.net/img/tradebug3.jpg

Once it updates, it shows under some sort of null gold slot and still allows me to list another slot for 12 when it should be 15. Once a slot sells out it goes right back to being weird again.

http://thefauxreal.net/img/tradebug4.jpg

I have had similar issues, except would have multiple free slots and sum stuff went into the negative. for instance ...... x-2