Originally Posted by
Celestia
Are you SURE you were at 39/40 last time you checked? Because if you were at 39/40 with all four Steamwheedle Cartel factions at Exalted and then you dropped those reps to raise Bloodsail rep, then you would lose credit for those four. Putting you at 35/40. If you were getting credit for 39/40, even after dropping those - then that is a bug. Same if you were getting credit for both Oracles and Frenzyheart at the same time.
If you have the achievement for Exalted Oracles, you don't lose the achievement if you switch and work on Frenzyheart. If you are working on Insane in the Membrane, then you still get credit for having Steamwheedle exalted reps even if you drop them due to Bloodsail. However, the 40 Exalted reps achievement requires 40 simultaneous exalted reps.
So, pull up your armory and count how many factions you're actually exalted with right now. That's how many out of 40 you should have for that particular achievement.