FlxTypedGroup<FlxTypedGroup<T>> updates the elements but doesn't render them on Windows

Mobandon

Hello!

So, I have a FlxTypedGroup object which can contain several FlxTypedGroup for FlxSprite (bullets). For short, the type of the object is FlxTypedGroup<FlxTypedGroup<Bullet>>.
(Note: In my game, the typedef of FlxTypedGroup<Bullet> is BulletPool, inspired by this tutorial.)

I made this because I want to create several FlxTypedGroup<Bullet> in a FlxSprite object and add them directly into the game state. As shown below:

PlayState.hx

public var boss:Boss;
public var eneBullets:FlxTypedGroup<FlxTypedGroup<Bullet>>;

public function create(){
... //create boss
 eneBullets = boss.allBullets;
 add(eneBullets);
}

Boss.hx

public var allBullets:FlxTypedGroup<FlxTypedGroup<Bullet>>;

public static function createWeapon(_i:Int){
 var pool = new FlxTypedGroup<Bullet>(_i);
 allBullets.add(pool);
}

It's working fine in the Neko and HTML5 target. But in the Windows target (c++), the bullets are updated, but not rendered... I know this is a problem with the FlxTypedGroup<FlxTypedGroup<T>> thing because I have a FlxTypedGroup<Bullet> object in the game state and it has no problem.

So I want to know if it's a known problem, and if there a better alternative to "a group inside a group" that could work...

Thank you!