Board Thread:General Discussion/@comment-99.25.27.71-20130112015101/@comment-6881629-20150317115837

Fast traveling sometimes makes a lost follower appear but she should go to Castle Volkihar if you sided with the Vampires or Fort Dawnguard for the Dawnguard she can very often get stuck so you could try walking from the place where Aela replaced her to whichever location she's suppose to go to, if shes dismissed or replaced as a follower she can lose the recruiting dialog or at worst to just vanish though i'm afraid.