Seems like you have the "Fresh Off The Bus" quest as either "Not Started" or "Started". I always start a character and complete the "The Doctor Is In" quest before I start mod'ing them. -- MeMadeIt 04:22, May 17, 2010 (UTC)
I think using Willowtree is your problem.
Are you attempting to modify the file of a new character or working on the file of a character with most of the story missions done already? As MeMadelt noted, this can be a big factor. Skeve613 21:50, May 17, 2010 (UTC)
I have the same problem and played until level 13. It worked with my playthrough 2.5 char, but not with my level 13 hunter. A solution would be really nice!