My best guess is that race-rerolling to Half Orc from human caused the game to take away some points in Devastating Critical.
Other than that, I'm not sure what else there is that would cause this. Maybe the game moved a few of your boons around? Maybe you didn't have a potion or food item used?
The loss of 3 heroic points that human offers will make that difference. One reason I haven't rerolled my guardian. I don't want to respec to correct the loss of (wrong) heroic points.
Comments
Other than that, I'm not sure what else there is that would cause this. Maybe the game moved a few of your boons around? Maybe you didn't have a potion or food item used?