In tables, why only 2 values are being printed?

local Left = script.Parent.Left

local LeftFront       = Left:FindFirstChild("UpFrontLeft")
local Left            = Left:FindFirstChild("Front")
local LeftRear        = Left:FindFirstChild("UpFrontBack")
local LeftFrontLower  = Left:FindFirstChild("DownFrontLeft")
local LeftLower       = Left:FindFirstChild("DownFront")
local LeftRearLower   = Left:FindFirstChild("DownFrontBack")

local L = {
	LeftFront,
	Left,
	LeftRear,
	LeftFrontLower,
	LeftLower,
	LeftRearLower
}

for index = 1, #F do
    local value = F[index]
    print(index, " = ", value)
end

It only prints:

  1  =  UpFrontLeft
  2  =  Front

If I change #F to 5, for example, it gives me:

  1  =  UpFrontLeft
  2  =  Front
  3  =  nil
  4  =  nil
  5  =  nil

You should use:

WaitForChild:
-- instead of
FindFirstChild:

This will allow things to load before your script just goes and rushes through everything. You could also put like a wait before the table so everything can load, but waitforchild is better.

So I found a very weird solution for this which could be found here, if you know why, please explain it to me!