No, no bug, that's what I am getting too. I lost count how many times I have tried and failed at this guy over the past week. 10 failes already tonight and I am losing too many credits on Med Robot Visits. Tried several companions, tried kiting, tiried hiding behind pillars, nothing. I am 48 Marauder and still get my ***** kicked by this guy. I'll have to just keep grinding and come back at 49 and try again.