I used the magnitude but why does it only worked on the later paths but not on the first few paths?

Line 6 Help would be so much appreciated

function jeeptarget()
	for _, v in pairs(Zombies) do
		if v:FindFirstChild("HumanoidRootPart") then
			if v.HumanoidRootPart:FindFirstChild("Node") then
				if Model.PrimaryPart then
					if (Model.PrimaryPart.Position - v.HumanoidRootPart.Node.WorldPosition).magnitude < _Range.Value then
						if v:FindFirstChild("Humanoid") then
							if Humanoid then
								local ZombieHP = v.Humanoid.Health
								local TowerHP = Humanoid.Health
								v["Humanoid"].Health = v["Humanoid"].Health - TowerHP
								Humanoid.Health = Humanoid.Health - ZombieHP
							end
						end
					end
				end
			end
		end
	end
end
							
function onUpdate()
	if Model.PrimaryPart then
		if _MaximumPath.Value <= _CurrentPath.Value  then
			jeeptarget()
			if Model.PrimaryPart then
				if (Model.PrimaryPart:WaitForChild("Node").WorldPosition - ReversedPath:WaitForChild(_CurrentPath.Value).Position).magnitude < 0.5 then
					_CurrentPath.Value = _CurrentPath.Value - 1
				else
					Model.PrimaryPart:WaitForChild("AlignPosition").Attachment1 = ReversedPath:WaitForChild(_CurrentPath.Value):WaitForChild("Node")
					Model.PrimaryPart:WaitForChild("AlignPosition").MaxVelocity = _Speed.Value
					Model.PrimaryPart:WaitForChild("AlignOrientation").Attachment1 = ReversedPath:WaitForChild(_CurrentPath.Value):WaitForChild("Node")
				end
			end
		else
			Humanoid:TakeDamage(Humanoid.Health)
		end
	end
end