Achievements not working:
Ready, Set, Goat → Tracking not working.
Ghosts in the Dark → Teleport not working.
Bloom and Gloom → Daily not available.
Trials of the Crusader → Quest to complete dungeon can’t be turn in.
Childrens Week → Dalaran quest was never made available if you had completed it on the previous year.
2500 Daily Quests Complete → not tracking previous progress
Equip 30 Tabards → not tracking progress
Got My Mind on My Money → not tracking previous progress
Shadowfang Keep → Normal achievement unobtainable, killing last boss does not grant achievement.
Exalted reputations → Giving 50 exalted reputations for people that don’t have the criteria met, maybe counting double the same rep from alts.
Guild Achievements not working:
Everyone Needs A Logo → No credit given
Guild Classic Raider → AQ20 requires full 20 people from the same guild, while all other 40-man require only 10
The Pen is Mightier, Bushels and Bushels, Mighty Miners and Gemcrafter Extraordinaire → these achievements’ descriptions don’t specify the grade of glyph/ore/herb/gem, if they are supposed to require cataclysm stuff to give progress to their specific guild achievements