Achivment bug

I have done all my practice (drills) and it didn't give me the achivment... https://www.chess.com/practice/drills and https://www.chess.com/awards/jisern

The silicon brain

yes if u contact support then if they reply they might give you the achivement

?

There are at least a few broken achievements. Mostly with areas that were updated after the achievement system was put in place.

can u tell wich ones are?

same

same