Player 1 Champ 1 is engaged to Player 2 Champ 1. Player 2 Champ 2 is also adjacent to Player 1 Champ 1 but is stealthed. Player 1 Champ 1 attempts to disengage into the space that Player 2 Champ 2 is located so it cannot move. It spends 2 ap even though it wasn't able to move. Is this WAI?