Well, I found a minor bug with the brahmin rustling quest, but nothing that prevents it from being completed.
--SPOILER!!!--
I checked the brahmin and then confronted the Duntons, and when I talked to what's-her-name about it, I told her about the bug parts. She said she would deal with those two right away, instead of asking for more proof as she did in 1.1, though I'm not sure if this actually ended the quest. My next option was "Actually, I checked the brands..." and she replied with a different line, but basically saying again that she'd take care of them.
--END SPOILER--
Anyways, the quest is completed and I got the exp for it, though I'm not sure at what point.
Edit: Come to think of it, I didn't think to check to see if I got the exp twice, but I think I got it only once.