I am looking at his team right now. It's an allocation with a depth chart set by some one. It looks as he set his chart before aquiring his kicking game. Unless he purposefully / actcidentally benched his special teams unit, but maybe he forgot.
The bug is that if no one is set there the ai ignores the kicker. He has not set a punter either but the punter is punting.
In your case, if I am understanding it right now, play one kicker at both kickoff and kicker in the number 1 slot and the other kicker at the number two slot , in both depth chart spots. They have to be in unison or one will be permanently benched cause technically he started the game at the other.