I defeated blacklist driver 6, won his Gallardo, maxed out performance as I could (in fact, I just needed NOS because everything already was in the car). After that, I entered Burgerking cheat, won challenge, put all Junkman parts. Then looked at blacklist, and it says I defeated Webster although I haven't raced or milestoned him at all.

Is there a way to repair this? I think it takes too long to achieve the same again, especially if I won't get slip from the first time.