I dont think its a bug. The games suppose to be hard. Its not like those sissy RPGs that hold you hand like oblivion. I'd say it was pretty hard to kill raze on normal. I was a level 26 mage. All I did was disable the heal tanks, beat on him with my weapons, rather rinse repeat. He was rather easy that way. Just ignore the extras and beat him down.
What are your specs?
