English Mastery N.15 progression bug

[Maevis]

I’ve seen in September a similar issue was raised:

Mastery progression bug

Hello Hao90 here, 300h on steam, very passionate about this game, and always here to give back to the age of empires 4 community, trying all the betas, and all. So I decided that after 300h it was time to start completing the masteries lol. I mainly play the English, so I had that 3rd mastery that you have to beat an easy ai, a 1v1 game, so I made a game, it was by default NO TEAMS, I played the game, I beat the ai, and after the game was finished I did not received the achievement nor the ma…

Here the scenario is similar, but with the last and final task to complete in order to finish all the 15 missions required for the English Mastery.

I’ve done that mission several times but the system doesn’t recognize the completation of the last task:
Beat an IA set on Very Hard - 1v1 on a Standard game.

Thanks for your help.