What mounts count towards achievement
The mounts available there if you are already at exalted reputation.You learn a new alliance mount so you have 4 there now, but the achievement was already showing 5 as that's the most one of your horde characters can use, you.It was like this when i found it.I asked a gm about this, and he said this is working as intended and lock's mount works as a spell and doesn't count toward achievement.Most of the class mounts count towards the achievement on any of your toons.
So, things like the broomstick and the tcg ivory raptor.All legion class hall mounts counts towards the total count for the achievement regardless of the character you are on.That's mostly true, although for some odd reasons, class mounts from every class you got them o also count toward the achievement for 400 mounts.The problem here is the disconnect between the achievement counter and the mount journal counter.Yes, because 11 > 10, so update the achievement progress also to 11.
It showed 164 in total before, and it's still showing 164.Basically nearly every mount counts towards the achievment even cross faction.Iirc, the only ones that don't count are the ones you don't actually learn.