http://www.youtube.com/user/AeowynsGW2
Disappearing achievement points
Aeowyn Elyssar
http://www.youtube.com/user/AeowynsGW2
http://www.youtube.com/user/AeowynsGW2
At least 1 person has reported this as well. In either the JP or the Snowball event.
I think it’s because the achievement is capped at 15 achievement points (APs). After 41 runs, you have earnt 13 APs. After 60 runs, it awards you +5, but that brings you up to +18 APs in total, so it then took away 3 APs, to make you reach the cap of 15.
Same thing happened to me. Would be good if others tested it though, to check.