I love your game

I'm trying to get all achievements, I finished Mission 4 so far, I got the Efficiency and Directness Gold medals on Mission 1 and the Efficiency, Directness and Ruthlessness Gold medals on Missions 2,3 and 4 (see screenshot).
That's 11 Medals in total, but my War Hero Achivement only says I got 9 Gold Medals, and my Lightning Strike Achievment only says i got 3 Directness Gold Medals (see screenshot).
Is this an error, or do some medals of some missions not count towards the achievements ?
Thansk.