NPC Suddenly stops attacking after a few times?

Hi. My problem is that my NPC stops shooting after a few iterations. I'm using Run Mode on Roblox Studio. The script that makes it function is a descendant of the NPC itself. It is a Server Script. No errors. Attempts: Around 3-6. Outcome: Shoots around 3 - 15 times, then suddenly breaks.

Video (Its really bad quality but you can see that it is making a movement, then stops):

The script (In NPC, NPC in the workspace, not cloned):

muz = Particle Emitter for Bullet Muzzle bullet = literally the bullet effect both animations are parents of the NPC itself

local root = script.Parent.HumanoidRootPart
local hum = script.Parent.Humanoid
local range = 160
local dmg = 15
local char = script.Parent
local idle = char.Idle
local shoot = char.Shoot
local anim1 = hum.Animator:LoadAnimation(idle)
local anim2 = hum.Animator:LoadAnimation(shoot)
local SS = game.ServerStorage
local bullet = SS.Bullet
local tweser = game:GetService('TweenService')
function findTarget()
	for i, target in pairs(workspace:GetChildren()) do
		if target:IsA("Model") and target:FindFirstChild("HumanoidRootPart") and target:FindFirstChild("HumanoidRootPart"):IsA("Part") and target.Name ~= char.Name then
			local HumanoidRootPart = target:FindFirstChild("HumanoidRootPart")
			local Humanoid = target:FindFirstChild('Humanoid')
			local pos = (root.Position - HumanoidRootPart.Position).Magnitude
			if pos < range and HumanoidRootPart.Parent:FindFirstChild("Humanoid").Health > 0 then
				return HumanoidRootPart, Humanoid
			end
		end
	end
end

while wait() do
	local humroot, hum = findTarget()
	if humroot and hum then
		hum:TakeDamage(dmg)
		local clone = bullet:Clone()
		clone.Anchored = true
		clone.Parent = workspace
		clone.Position = char.muz.Position
		clone.CFrame = CFrame.lookAt(clone.Position, humroot.Position)
		local info = TweenInfo.new(
			.1,
			Enum.EasingStyle.Linear,
			Enum.EasingDirection.Out,
			0
		)
		local goal = {}
		goal.Position = humroot.Position
		local tween = tweser:Create(clone, info, goal)
		tween:Play()
		print('Found target')
		root.CFrame = CFrame.lookAt(root.Position, humroot.Position)
		anim2:Play()
		anim1:Stop()
		char.muz.ParticleEmitter:Emit(1)
		anim2.DidLoop:Wait()
		clone:Destroy()
	else
		print('Target no where to be seen')
		anim1:Play()
		anim2:Stop()
		anim1.DidLoop:Wait()
	end
end