Ancient Mana cap

I have done all leyline quests(and Suramar in general) and picked up all items that enlarge your Ancient Mana cap but I am still stuck at 1900 out of 2000 possible.

What have I done wrong?

This is on my character Pakheth on Stormscale EU. Forgot to change char.

You have likely missed one of them.
This is from wowhead: a macro that will tell you what exactly you’ve missed.

/run local a={41138,42230,42488,42833,42792,42842,43988,43989,43986,43987}for i,q in ipairs(a)do print(i,IsQuestFlaggedCompleted(q))end

It will show a list 1-10 in chat with either a “True” after it if you’ve completed that part or a “False” if you haven’t, each number corresponds with something that increases your Ancient Mana cap.
1 = Feeding Shal’aran (quest)
2 = The Valewalker’s Burden (quest)
3 = Thalyssra’s Abode (quest)
4 = How It’s Made: Arcwine (quest)
5 = Make Your Mark (quest)
6 = Kel’danath’s Manaflask (item)
7 = Volatile Leyline Crystal (item)
8 = Infinite Stone (item)
9 = Enchanted Burial Urn (item)
10 = Kyrtos’s Research Notes (item)

Turns out the Infinite Stone is what I am missing, the problem is that it isn’t here. I have gone back and double checked all locations several times and I know very well where it is as I have done these items on a number of alts.

And no it is not in my bank/bags. Was the first thing I checked.

So, since I might have deleted this item all the back in Legion what should I do?
This is the character btw.

Hey Pakheth,

As far as I can tell this is resolved now for you, as you’ve got the achievement!

One distinction that needs to be made, the “items” that increase the Ancient Mana that your character can carry, flag the quest only if they are used, not if they are looted.

Hellane, thanks for the macro and the detailed explanation on this!