Past contributor here. Hope all is well :)
I just activated Achievements on a new site set to launch soon.
Every page including the Ladderboard widget lists the achievements earned as it should. From what I can tell, everything functions perfectly except the achievements earned are not showing up on the profile page "user hasn't unlocked any achievements."
I reviewed each thread here, and based on this same problem reported on an earlier thread, I verified the code was proper on the template.php page; which it is.
I'm running the latest version of Buddypress (1.8.1) and WP 3.6.1 and I deactivated all plugins but it's still not showing up. I could sure use a hand here. Thank you! http://thecoachellaproject.com/achievements