Not sure if its a bug or not, but overnight I lost roughly 13,000 achievement points (from ~57,000 to 43,977) and dropped from 8th to 17th on my respective server.
This happened after I submitted that I had obtained a Maat's Cap, not sure if its relevant. I'm confident this is some sort of error/bug because the system currently ranks me behind someone who has 3,000,000 less xp and doesn't have a relic.