I have noticed a few buggy issues with the Achievements. The two that I have noticed personally is that I have not been credited with 8 man HM and SM Jarg and Sorno (have SM codex on empire toon and the HM codex on Pub toon). The other one is under Legacy > Possessions > Weapons that states to obtain the Cathar honor sword, and a specific dual edge sword and techblade. My marauder is dual wielding the Cathar honor swords presently.
Anyone know if these are know issues or is it just me?