My Squad System Attempt isn't working

[Jackal]

Before anyone says, yes I do know there is a Squad System on this site. I would use it but for some reason my World Editor doesn't accept the script.

Anyway, for some reason my Squad System attempt works for the first unit squad created, but doesn't work on the next lot, although it does deselect the units that aren't Squad Leader.

Unit Created
    Events
        Unit - A unit Finishes training a unit
    Conditions
        Or - Any (Conditions) are true
            Conditions
                (Unit-type of (Trained unit)) Equal to Conscript
    Actions
        Set TempPoint = (Position of (Triggering unit))
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit - Create 1 (Unit-type of (Trained unit)) for (Owner of (Trained unit)) at TempPoint facing Default building facing degrees
        Unit Group - Add (Last created unit) to TempGroup
        Unit Group - Order TempGroup to Attack-Move To (Rally-Point of (Triggering unit) as a point)
        Unit Group - Pick every unit in TempGroup and do (Unit - Add classification of Summoned to (Picked unit))
        Unit Group - Add (Trained unit) to Squad[Num]
        Unit Group - Add all units of TempGroup to Squad[Num]
        Unit Group - Pick every unit in Squad[Num] and do (Unit - Set the custom value of (Picked unit) to Num)
        Set Num = (Num + 1)
        Unit Group - Remove all units from TempGroup

Selected
    Events
        Player - Player 1 (Red) Selects a unit
        Player - Player 2 (Blue) Selects a unit
        Player - Player 3 (Teal) Selects a unit
        Player - Player 4 (Purple) Selects a unit
        Player - Player 5 (Yellow) Selects a unit
        Player - Player 6 (Orange) Selects a unit
        Player - Player 7 (Green) Selects a unit
        Player - Player 8 (Pink) Selects a unit
        Player - Player 9 (Gray) Selects a unit
        Player - Player 10 (Light Blue) Selects a unit
        Player - Player 11 (Dark Green) Selects a unit
        Player - Player 12 (Brown) Selects a unit
    Conditions
        ((Triggering unit) is Summoned) Equal to True
    Actions
        Selection - Remove (Triggering unit) from selection for (Triggering player)
        Unit Group - Pick every unit in Squad[(Custom value of (Triggering unit))] and do (Actions)
            Loop - Actions
                If (All Conditions are True) then do (Then Actions) else do (Else Actions)
                    If - Conditions
                        ((Picked unit) is Summoned) Equal to False
                    Then - Actions
                        Selection - Add (Picked unit) to selection for (Triggering player)
                    Else - Actions

Move Squad
    Events
        Unit - A unit Is issued an order targeting an object
        Unit - A unit Is issued an order targeting a point
        Unit - A unit Is issued an order with no target
    Conditions
        (Custom value of (Ordered unit)) Greater than 0
        ((Ordered unit) is Summoned) Equal to False
    Actions
        Unit Group - Pick every unit in Squad[(Custom value of (Ordered unit))] and do (Actions)
            Loop - Actions
                If (All Conditions are True) then do (Then Actions) else do (Else Actions)
                    If - Conditions
                        ((Picked unit) is Summoned) Equal to True
                    Then - Actions
                        Unit - Order (Picked unit) to Follow (Ordered unit)
                    Else - Actions

3 Variables being used, Num (Integer, default value of 1), Squad (Unit Group Array) and TempGroup (Unit Group).

I've figured that the problem is caused by the custom value of the Squad Leaders past the 1 Squad not being set. I'd like to know why this is so and how I can fix it. +rep to anyone that can help.