I played for several hours from launch and amassed around 250 achievement points overall. I log off for a couple of hours and come back on later and it says I have 150 achievement points.
When resuming my game random achievements that I knew I unlocked previously would unlock at odd times like 5 minutes into playing I'll unlock the 'Rarely There' achievement despite already have been wearing some rare items prior.
It also remembers the banner unlocks I acquired with those achievements however if I would edit it and keep the unlock to be used for the final banner and select save it will come up with Error: 395005
I don't really care about the achievement points as they're pretty hard to miss. anyway just through the last bug might be a problem.