The quest where Sandra wants to look for Bob isn't being given to me. I went through all the main story, finished the thieves guild quest, and got the Newkungu scene, and finished most of the game but she still won't give me the quest. Any ideas on how to fix it?

Do you have the mithril lockpick from the events with the locked chest in the swamps south in Bitterroot farm?

Doesn't trigger for me either, I did the Mithril Lockpick, and now all she says is the "We got an awesome treasure this time!" line.