I just played osumania and got my first pp worthy play in a long time, or so I thought. When I finished the song, I refreshed my profile, and suddenly lost 500 pp. All my previous plays have also had their pp value reduced, dropping from 200 pp to 170 pp. I got really confused and wondered if this was a change in overall map ratings, but I looked at some other profiles and didn't notice anything weird. Strangest thing was when I suddenly went up in the rankings by 6000. I was just wondering if this has happened for any of you.