I found a strange bug/problem that happens occasionally. When the bot goes to sell items to a vendor, it will open up the sell screen but fails to control click the items into the selling inventory. What happens is that the bot will mouse over all of the items it is trying to sell, without actually putting them into the trade window.
I found that this behavior can be fixed pressing either the shift or control keys. It's as if the bot has sticky keys or something and is not registering the control clicks.
Has anyone else ran into this issue?