I had Faendal as a follower, and he disappeared somewhere along the way. Found him back at his house. I asked him to follow, but he says I already have a follower. I killed the dragon, but Lydia says the same thing. Is there any way to reset it back to no follower? I really don't want to start over.
I have never heard of this glitch but I think the only way is to force/cheat him to make you your follower or go back to a previous save.
And anyway the only benefit of having a follower is a little extra damage and increased carry weight (putting stuff on follower) and anyway you should only carry the crucial stuff for your build.