Game Mechanics: EXP Penalty / DMG Cap - Casters

[knotme]

Since the server restart on 12/21, or so, my chanter has been hitting with a cap of 12. This is regardless of weapon. I used Smoldering Brand, Etched Steel Baton, and Nobles Walking Staff. I also noticed that my EXP per kill, past level 2, hovers sometimes around 1% without any pets or groups. I am leveling in Qeynos/Qeynos Hills Area. Another chanter came to test this issue, he is level 12, and he was capped at 12 too. Unsure what's happening.