ZLSL's Battle Portraits

[kyonides]

To be honest with you, I would have define the party size method used in Spriteset_Battle as you can see in the code snippet below...

Code:

def zlslbportait_function_update_actor_party_size
    # Set current number of battlers
    return $game_party.party_size || 4
  end

And yeah, as zlsl has already noticed, you didn't include any party_size method in Game_Party...