How to clone a part and have a script inside it run?

I have a mesh part inside of ReplicatedFirst with a simple script attached:

print("Hello world!")

while true do
	print("Hello world!")
	wait(1)
end

However, when I clone it into workspace, it doesn't run. I don't understand why. What am I doing wrong?

Edit:

I tried to set the script's Disabled property to True and then after I cloned the part, set it back to false, but it still didn't run:

This is the function I am using to spawn the meshPart

local function CreateNewPart(partToCreate, position)
	local copy = partToCreate:Clone()
	copy.CFrame = CFrame.new()
	copy.Anchored = true
	copy.CanCollide = true
	copy.Position = position
	copy.Orientation = Vector3.new(0,0,0)
	copy.Parent = platformsFolder
	copy.Script.Disabled = false
	print(copy.Script.Disabled)
	return copy	
end

The output from the print() is "false"

You can create the script inside the block and activate its "Disabled" property, then when you clone the Part with a script you deactivate the Disabled of the Script that is inside the Part