I can't see the object I created via C# unless I click on it in the hierarchy.

Video of it here. The object exists and updates, but it doesn't draw unless you click on it in the hierarchy.

Code:

Code (CSharp):

1.     GameObject ball = new GameObject("Fireball");
2.  
3.     ball.transform.position = owner.transform.position;
4.  
5.     // Set up projectile and calculate direction.
6.     Projectile projectile = ball.AddComponent<Projectile>();
7.     projectile.Speed = 1f;
8.  
9.     Vector2 delta = owner.transform.position -
10.         Camera.main.ScreenToWorldPoint(Input.mousePosition);
11.  
12.     float radians = Mathf.Atan2(delta.y, delta.x);
13.  
14.     projectile.Direction = new Vector2(
15.         Mathf.Cos(radians),
16.         Mathf.Sin(radians));
17.  
18.     // Set up mesh.
19.     QuickPolygon poly = ball.AddComponent<QuickPolygon>();
20.  
21.     poly.SetMeshType(MeshType.Circle);
22.     poly.SetBorderUnicolor(new Color32(255, 0, 0, 255), .03f);
23.     poly.SetFillEmpty();
24.     poly.SetBorderColor(new Color32(255, 0, 0, 255));
25.  
26.     poly.RecalculateMesh();

QuickPoly is a wrapper for OpenGL primitives.