Not always working masteries (?)

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.

Whats wrong?

(Another question, if some nation masterie is like abbasid one: Win easy AI game. Can it be earned when i play other nation?)

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