SittingDuck

Has anyone else seen this issue? I started Peril on Gorgon at level 30. I backtracked to an appropriate save once I figured out the mysterious unpublished secret to actually playing the DLC. Once I reached 33 (a long while before finishing the DLC), I never gained a single experience point. My Current XP remained at exactly 85,390 all the way to the end of the DLC (XP Needed to Level: 410,000), even though I finished several quests after that level 33 milestone, including the DLC ending. I suspect that this has something to do with the level lock of 33. Any thoughts?