During the first server maintenance, i think that was during may 16, i was still playing because i was not disconnected. Then after the maintenance, many of my character's/account achievement have not been recorded like reaching level 10, which will unlock the hell spawn sigil and now I'm level 20, I'm still using the hell spawn sigil in my banner but when i look on my sigils its still locked. Also, there are some achievements that are not recorded but it were already done. Like the books and events in act I.