I doubt its the mythic helm.. coz i made this screenshot 2 days ago:
Name: 2013-11-02_11-39-40.png Views: 457 Size: 461.5 KB
And this after Update...
Name: 2013-11-19_18-02-51.png Views: 470 Size: 463.8 KB
In both pictures i was wearing "illusion mantle of savvy lvl 15" as a helm..
So maybe they "stole" some lvl points?