Does Doryani not sell at higher tier maps?

I am at the point where I need to clear red maps in order to continue getting Atlas Skill Points, but Doryani only sells white maps. Is this a bug? Most of the time he sells tier 1-2 maps and I've seen maybe one tier 5 map. I would like to know if this is intended, at least. I think Doryani should sell red maps 1 exalted orb each.

I don't know if it is a Bug or inteded but..
Doryani should at least reset his stock every day and level up, with say up to 5-10 Waystones, based on Atlas quest progression.

Yes, he only sells up to T5 maps. The T1 maps he sells an infinite number of maps.

By the time you are into yellow waystones you shouldn't have too much of a hard time sustaining maps yourself.