As it is now the Hanse production modifier also applies to food, gold and science. This bug can be easily recreated by starting a game with an advanced start and sending a trade route to a city state.
On a side note: the city state trade route mission says: Wittenberg disires trade route. Shouldn't it be "a trade route"? (this is only visible when the notification "falls down" on the right side of the screen.)
On a side note: the city state trade route mission says: Wittenberg disires trade route. Shouldn't it be "a trade route"? (this is only visible when the notification "falls down" on the right side of the screen.)