Hello, I don't know if the bug is due to Vassal States or not, but let me explain; Augustus is my Vassal (he capitulated), when I go to the trade screen I see he has 3gpt so I decide to trade him sheep for his 3gpt, after the deal is done he still has 3gpt (???) so i trade him rice for that, and he STILL has 3gpt, i tried with all of my resources and he STILL has 3gpt (this is all happening in the same turn, but if i close the diplomacy screen and go back he has 0gpt), I'm getting rich with that guy but I really think this is a bug since I never saw that before and I play much