Spawn function not working as espected?

Hello, im scripting an NPC. After setting the pathfinding functions, i've connected it in a While loop inside a spawn. There are 2 loops playing in spawns, one for constantly checking if there is a player neaby, other checking if the character is attacking someone or it can move around for a random position.

To know when the NPC is attacking or not, I crate this variable called "attacking". It is suposed to be set to 5 in the second loop everywhen a player is detected nearby, and then the first loop stops moving the NPC to random positions and wait until the attacking goes down from 5 to 0. With this, i want the NPC to remain in "attacking" state for 5 seconds after it stops detecting a player, and want it not to move randomly while attacking. The second loop though keeps moving the NPC to the nearest sensed player constantly.

The problem is: the attacking variable seems to stop being set to 5 when the loop "while attacking > 0 do" is running. I dont want this to happen and dont expect it sinse they are in 2 separate threads. When printing the attacking variable constantly, it starts to go down until 0 instead of keep constantly in 5 while following the player, and when it reaches 0, it goes to 5 again. Weird. With a print right after "attacking = 5" i checked that it really sets to 5 on that loop, but then looks like that 5 does not became the global variable "attacking", the output goes (nearly) like this:

5, 
4.9, 
5, 
4.8, 
5, 
4.7, 
5, 
4.6, 
5, 
4.5

The code:

local attacking = 0
ViewAngle = 90

spawn(function()
	while wait(3) do
		if attacking <= 0 then
			followPath(center + Vector3.new(math.random(-30,30), 0 , math.random(-30,30)))
		else
			while attacking > 0 do
				print(attacking)
				attacking = attacking - wait()
			end
			ViewAngle = 90
		end
	end
end)

spawn(function()
	while wait() do
		local plrs = GetPlayersInFront(Root, ViewAngle, 40)
		if plrs then
			closer = getCloser(plrs)
			if closer then
				attacking = 5
				print(attacking)
				ViewAngle = 360
				followPath(closer.Position)
			end
		end
	end
end)

I found the answer, for an unknown reason it was that attacking = attacking - wait() that was creating the bug