Lock-on script does not lock on to the enemy when holding LeftShift?

I want to make a script where you lock on to the nearest player while holding LeftShift.

The problem is that it does not lock on to the enemy, which means it doesn’t find the enemy. I think that mabe the magnitude does not work since it does not print 1 on line 50.

I don’t know why it does not find the target, since in my other scripts it works.

local player = game.Players.LocalPlayer
local char = player.Character
local Humanoid = char:WaitForChild("Humanoid")

PlayerHRP = char.HumanoidRootPart

local Cam = game.Workspace.CurrentCamera
local run = game:GetService("RunService")
local X = 12
local Focused = false
	
local input = game:GetService("UserInputService")

 
input.InputBegan:connect(function(k)
    local key = k.KeyCode
    if key == Enum.KeyCode.LeftShift then
        Focused = true
		Cam.CameraType = "Scriptable"
    end
end)
 
input.InputEnded:connect(function(k)
    local key = k.KeyCode
    if key == Enum.KeyCode.LeftShift then
        Focused = false
		Cam.CameraType = "Custom"
    end
end)

local function findTarget()
	local dist = 100
	local Target = nil
		for i,v in pairs(game.Workspace:GetChildren()) do
			local human = v:FindFirstChild("Humanoid")
			local TargetHRP = v:FindFirstChild("HumanoidRootPart")
				if TargetHRP and human and PlayerHRP and v ~= script.Parent.Parent then
					if (PlayerHRP.Position - TargetHRP.Position).magnitude < dist then
						dist = (PlayerHRP.Position - TargetHRP.Position).magnitude
						Target = TargetHRP
					end
				end
			end
			return Target
		end


local TargetHPR = findTarget()
	if TargetHPR then
		   print(1)
		   while Focused do
		   wait()
		   while(TargetHPR.Position - PlayerHRP.Position).magnitude > 10 and TargetHPR.Parent.Humanoid.Health > 0 do
				Health = TargetHPR.Parent.Head:FindFirstChild("BillboardGui")
				Health.Enabled = true
				local B = TargetHPR.Position
				local A = PlayerHRP.Position
				local Offset = Vector3.new(5,1,0)
				local V = B + ((A + Offset) - B).Unit * ((A - B).Magnitude + X)
				Cam.CFrame = CFrame.new(V, B)
				run.RenderStepped:Wait()
			end
		end
end