Only teleporting one player out of 12 in-game??

My code is supposed to teleport all players at once into the map but instead is only teleporting one player each with a three second period of time in-between. I've been trying to fix this forever now please help

local rand = math.random(1, #maps) --chooses random map

	local map = maps[rand]:Clone() --clones map
	map.Parent = workspace --places map in workspace (loads map)
	local barrier = map.barrier --find barrier
	local mapname = map.MapName.Value

	status.Value = "Next map : "..mapname --sets status to map name
	wait(4)
	status.Value = "Teleporting players..." --warns players
	wait(2)
	
	
	local players = game.Players:GetChildren() --gets all players ingame
	for i = 1,#players do
		players[i].Character.Humanoid.WalkSpeed = 0
		if players[i].Character ~= nil then
			local spawnLocation = math.random(1,#workspace.Teleports:GetChildren()) --finds pos
			players[i].Character:MoveTo(workspace.Teleports:GetChildren()[spawnLocation].Position) --teleports player
			players[i].Character.Parent = workspace.Ingame --sets player to ingame folder
			status.Value = "Get ready!"
			wait(2)
			barrier.CanCollide = false -- open walls
			status.Value = "Go!"
			players[i].Character.Humanoid.WalkSpeed = 16
			wait(1)
		end
	end

Simple, since you put the starting code in the loop while it's teleporting it will only spawn 1 and start the game.

status.Value = "Get ready!"
wait(2)
barrier.CanCollide = false -- open walls
status.Value = "Go!"
players[i].Character.Humanoid.WalkSpeed = 16
wait(1)

To fix this just put the starting code outside of the loop like so

local rand = math.random(1, #maps) --chooses random map

local map = maps[rand]:Clone() --clones map
map.Parent = workspace --places map in workspace (loads map)
local barrier = map.barrier --find barrier
local mapname = map.MapName.Value

status.Value = "Next map : "..mapname --sets status to map name
wait(4)
status.Value = "Teleporting players..." --warns players
wait(2)


local players = game.Players:GetChildren() --gets all players ingame
for i = 1,#players do
	players[i].Character.Humanoid.WalkSpeed = 0
	if players[i].Character ~= nil then
		local spawnLocation = math.random(1,#workspace.Teleports:GetChildren()) --finds pos
		players[i].Character:MoveTo(workspace.Teleports:GetChildren()[spawnLocation].Position) --teleports player
		players[i].Character.Parent = workspace.Ingame --sets player to ingame folder
	end
end
status.Value = "Get ready!"
wait(2)
barrier.CanCollide = false -- open walls
status.Value = "Go!"
players[i].Character.Humanoid.WalkSpeed = 16
wait(1)