Campaign: The Jade Forest

My quest log shows that my story progress for Jade Forest is 12/12. I have completed all story lines. Yet my achievement shows that I am only 6/12.

Best I can figure is this is because I am a playing a horde character and yet my achievement is for an alliance campaign. The "6" I've completed are shared chapters "Nectarbreeze Orchard, Tian Monastery, Greenstone Quarry, Dawn's Blossom, The Temple of the Jade Serpent and Terrace of Ten Thunders"

EDIT: There are TWO achievements with this title, if you're confused like I was on why you can't complete this achievement while on your way to finishing everything in Remix, you need to quest the jade forest on BOTH a Horde AND Alliance character to unlock these.

I‘ve done every single quest in Jade Forest, Yet my "Grookin Hill" in this achievement is still grayed out? Anyone else having the same issue?

Many of mine are greyed out. No idea why. I see no quests left in the zone.