Why do these change color at the same time even though I have a wait?

local s1 = script.Parent.Spawn1
local s2 = script.Parent.Spawns2:GetChildren()

local loop = coroutine.create(function()
	while true do
		wait(.4)
		s1.BrickColor = BrickColor.Random()
	end
end)
coroutine.resume(loop)
wait(.4)
local loop2 = coroutine.create(function()
	while true do
		wait(.4)
		for i,v in pairs(s2) do
			v.BrickColor = s1.BrickColor
		end
	end
end)
coroutine.resume(loop2)

The second set of spawns are meant to wait .4 seconds before they change but they change right when the first spawn changes. Why?

local loop2 = coroutine.create(function()
    while true do
        for i,v in pairs(s2) do
		wait(0.4)
            v.BrickColor = s1.BrickColor
        end
	wait() -- make sure that the loop doesn't crash the script
    end
end)