Particles only visible for LocalPlayer?

I have made this script where when you click a Position you want to go a particle will come and make a cool teleportation effect. It works well however the issue is that only the LocalPlayer can see their own particles.

I was testing with my friends and it all worked for them but I couldn't see their particles and they couldn't see mine however they said they could see their own particles just not anybody elses.

I'm a bit confused on why I can't see their particles, just my own? Can someone please reply with an explanation. Thank you.

The Script:

local rep = game:GetService("ReplicatedStorage")
local player = game:GetService("Players").LocalPlayer
local char = player.Character or player.CharacterAdded:wait()
repeat wait() until char:FindFirstChild("Humanoid")
local human = char.Humanoid

repeat wait() until game.Players.LocalPlayer.Character
local MyBody = player.Character
local mouse = player:GetMouse()

local cd = false
script.Parent.Activated:connect(function()
	if cd == false then
		cd = true
		 local ee = rep.particle:Clone()
		human.WalkSpeed = 0
		ee.Parent = game.Workspace
		ee.Position = human.Parent["Left Leg"].Position
 local hit = mouse.Hit
		local qq = rep.particle:Clone()
		qq.Parent = game.Workspace
		qq.Position = hit.p
	wait(3)
 MyBody:MoveTo(hit.p)
	human.WalkSpeed = 16
	ee:Destroy()
			wait(1)
	qq:Destroy()
		wait(2)
	cd = false
end
	end)

The reason it didn't work for you is because you were using a local script. This basically means that only clients (People) can see it not the server. If you want it to be on the server then put it in a server script. Else use a remote event.