Hi, i dont understand it. There is clearly written: produce 30 longbowman in Age II from Council Hall.
I did it, double clicked on them, saw number 30 in the left down counter. Then i passed to Age III. Masterie not earned.
I started Easy AI 1v1 game playing Abbasid. Won it. Masterie is still the same. Not earned.
(Another question, if some nation masterie is like abbasid one: Win easy AI game. Can it be earned when i play other nation?)