Checking if all of a model's parts meet a requirement at once

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#1

I’m finishing up this tiles minigames script where, long story short, the player must light up all tiles at once to move on to the next round. However, I have an issue with my for loop. I wasn’t really sure how to check all of a model’s children at once, so I researched and used this method, and it semi-works. However, my problem is, once a tile is passed under the argument that it is neon, it can be changed to plastic afterward, but still pass the argument and move onto the next round. If you don’t know what I mean, there’s a video below. Is there a better way to check all of a model’s children?
Video-

--mainly care about this part
if tableclear then
for _, Children in ipairs(Folder:GetChildren()) do
	print(Children)
	if (Children.Name ~= "Layout" and Children.Material == Enum.Material.Neon) then
		print("table ready to clear")
		tableclear = false
	elseif (Children.Name ~= "Layout" and Children.Material ~= Enum.Material.Neon) then
		tableclear = true
		repeat
			wait()
			if (Children.Name ~= "Layout" and Children.Material == Enum.Material.Neon) then
				tableclear = false
				print("now neonized")
			end
		until tableclear == false
	end
end
end
--this ends the for loop part/checking if all the parts met the requirement


if not tableclear then
	print("tableclear is false!")
	if #chosen == MAX_OBJECTS then
		table.clear(chosen)
		NeonsHIT += 1
		if NeonsHIT == 1 then
			print(NeonsHIT)
			MAX_OBJECTS = 15
			tableclear = nil
			for _, Children in ipairs(Folder:GetChildren()) do
				if (Children.Name ~= "Layout" and Children.Material == Enum.Material.Neon) then
					Children.Material = Enum.Material.Plastic
				end
			end
		elseif NeonsHIT == 2 then
			print(NeonsHIT)
			MAX_OBJECTS = 20
			tableclear = nil
			for _, Children in ipairs(Folder:GetChildren()) do
				if (Children.Name ~= "Layout" and Children.Material == Enum.Material.Neon) then
					Children.Material = Enum.Material.Plastic
				end
			end
		end
	end
end