Autofill protection malfunction

I q'd for a game as support/top on 11/26/2016 with autofill protection (I know it was bc I hovered over it to see what it was) and was put as bottom. I q'd up in normal draft on 11/23/2016 as support primary and top secondary and finished a game as support blitz. The only game inbetween was an aram on 11/25/2016 yet I still got stuck in a position I did not chose.