Originally Posted by
Synthaxx
I might have misunderstood, but you flew INTO the clouds? That would explain why the achievement isn't being granted. I did the achievement on my Destro lock some months ago, and though it took a few attempts to get it right, I eventually managed it just by going a little bit slower when going through the rings to make sure I didn't hit the clouds - I'd just stop moving between rings and wait for new ones to spawn before moving on. It may be that the achievement has bugged out since that time with a patch or such, but don't rely on an addon to tell you. In fact, just do it without the addon and take your time.