Mauga achievements do not appear under Profile>Achievements>Tank. I’d wager a lot that he’s not the only one with this problem.
I’m no data whiz, but shouldn’t these basic things that apply to every hero at launch be as simple as adding a characters initial entry into a roster database?
Basic data structure could be uniformly arranged for every hero to ensure some uniformity, and probably save a lot of work on stuff like this which is such a menial element to a heroes instantiation. ¯_(ツ)_/¯