Pathfinding AI: Target Position Updating Issues

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1

Ok so basically Ive used several sources and codes from different places, edited them to fit what I need, and Ive got a script that kinda works! Im working on a Pathfinding AI for my SCP Foundation that tracks the nearest player within a certain distance,

The issue is that if the player moves but is still within the AI’s Field of Vision (100 Studs in this case) the path wont update, I removed the section of code that prevented the AI from remaking a path if the target is the same, it tries to update its path, but instead it appears the AI is getting confused and it ends up jumping and spinning in circles.

I have yet to come up with any solutions, but I will leave my code below, as I am not one to hide my code, especially after the amount of help I have already gotten.

CODE 
local PathfindingService = game:GetService("PathfindingService")
 
local SCPAI = script.Parent
local humanoid = SCPAI.Humanoid
local destination = nil
local lastdestination = nil
local destinationlastpos = nil
local path = PathfindingService:CreatePath()
local waypoints
local currentWaypointIndex

local function GetClosest()
	local aiHrp = SCPAI.HumanoidRootPart
	local closestDist = 100
	local closestObj = nil
	local closestPos = nil
	for i,v in pairs(game.Players:GetPlayers()) do
		local char = v.Character or v.CharacterAdded:Wait()
		local hrp = char.HumanoidRootPart
		local dist = (aiHrp.Position-hrp.Position).Magnitude
		if dist <= closestDist then
			closestDist = dist
			closestObj = char
			closestPos = closestObj.HumanoidRootPart.Position
		end
	end
	return closestObj, closestPos
end

local function followPath(destinationObject)
	path:ComputeAsync(SCPAI.HumanoidRootPart.Position, destinationObject)
	waypoints = {}
	waypoints = path:GetWaypoints()
	
	
	if path.Status == Enum.PathStatus.Success then
		waypoints = path:GetWaypoints()
		currentWaypointIndex = 1
		humanoid:MoveTo(waypoints[currentWaypointIndex].Position)
	else
		humanoid:MoveTo(SCPAI.HumanoidRootPart.Position)
	end
end
 
local function onWaypointReached(reached)
	if reached and currentWaypointIndex <= #waypoints then
		if waypoints[currentWaypointIndex].Action == Enum.PathWaypointAction.Walk then
			humanoid:MoveTo(waypoints[currentWaypointIndex].Position)
		elseif waypoints[currentWaypointIndex].Action == Enum.PathWaypointAction.Jump then
			humanoid.Jump = true
			humanoid:MoveTo(waypoints[currentWaypointIndex].Position)
		end
		currentWaypointIndex = currentWaypointIndex + 1
	else
		destination = nil
	end
end
 
local function onPathBlocked(blockedWaypointIndex)
	if blockedWaypointIndex > currentWaypointIndex then
		followPath(destination)
	end
end

while true do
	wait()
	destination, destinationlastpos = GetClosest()
	if game.Players:GetPlayerFromCharacter(destination) then
		lastdestination = destination
		followPath(destinationlastpos)
		path.Blocked:Connect(onPathBlocked)
		humanoid.MoveToFinished:Wait()
		humanoid.MoveToFinished:Connect(onWaypointReached)
	end
	if not game.Players:GetPlayerFromCharacter(destination) then
		destination = nil
		lastdestination = nil
	end
end