Neopets recently changed the code on their attic page. It was a small and insignificant change but since they changed code on the page, they may start tracking buy times on the page. This is just to let you know, for those of you that figured out that they did not track attic buy speeds, that this may have changed.
I would suggest scaling back your buy speed for a while and ease them forward again to check and see if anything has changed. As it is, Abrosia processes Attic buys properly again, and so you can enjoy it once more.
I looked at Main shop and Igloo pages and they seem to be unmodified, and so this change only affected the attic.
Happy cheating!