Bugs related to character Trade

So i started fresh on the bfa realm today and i wanted to skip straight into endgame
To prevent myself from all that grind for flying etc i decided to buy a character of the trade market who has achievements like Pathfinder of bfa
My idea was that this achievement get shared across the whole account and i dont have to grind that achievement aswell

So i bought some random hunter of the market , made him new faction and a name and now i have 2 questions:
1:st as u can see i got that hunter for some reason 2x on the same account, same name, same race, same look..however different pets
2.nd : the achievements the new hunter has are not shared between the account, includion pathfinder of bfa

so is this bugged, intended to be like that or whats the matter `?