Achievement wasn't rewarded? I was in China before

So to get this achievement it
"Defeat the Jin before they start constructing a Wonder in the third Genghis Khan mission “Into China”.

I could swear I did exactly that. I did not use cheats nor was I promped the screen that said so when finishing the stage.

I heard Jin starts building the wonder at minute 40, I defeated them before minute 40 but finished the actual mission after that.

Does anyone have this achievement?
Did anyone have this problem?

3 posts were merged into an existing topic: 3rd Mongol Mission Achievment bug