For my last two playthroughs i had this oddest of bugs in the Helgen intro sequence.
Leaving character creation would force me into third person view up until the point where my bindings got removed, after which i could freely switch between the two views.
I never thought much of it because it was quite the novel experience to watch everything from a different perspective.
Today, as the last step in rebuilding my mod list, i was cleaning the mods that LOOt had flagged as dirty and to my amazement the bug was gone. Everything was back to first person.
Now, out of curiosity