After the patch today, the seasonal artifact was reset. Unfortunately, progress towards unlocking the next artifact mod appears to be broken. Instead of the XP tracker, the bar says "0/1". Earning XP and completing activities does not modify this value, which makes progression impossible. Additionally, there is no option to reset the artifact as "artifact unlock" is perpetually 0/1. EDIT: This 0/1 bug appears to be visual. I just got an artifact unlock after completing a few seasonal challenges. It worked as expected, even giving me the correct triumph.