Why is my Teamchanging/Teleportation loop malfunctioning?

This is the main script for my first game project. Everything works fine up until the changing teams and teleportation/section. When play testing in a local server everything seems to be in order, however when I bring a friend in to test in play mode only I am teleported and teamchanged. Thank you for your help! :)))

game.workspace.players.playersIngame.Changed:connect(function(initialstart)
	wait (5)
	local playersIngame = game.workspace.players.playersIngame.Value
	local children = game.Players:GetChildren()
		if playersIngame >= 2 
		and playersAlive == 0 then
		print ('The first game needs to be started')
			workspace.mapsIngame:ClearAllChildren()
			print ('First round initialized')
			wait (initaltime)
				print ('Loading new map')
				for i,v in pairs(Maps) do
				if randomMap == i then
				storage = game:GetService('ReplicatedStorage')
				local map = storage.Maps:WaitForChild(v):Clone()
				map.Parent = workspace.mapsIngame
				print ('Map loaded')
					wait (initaltime)
					print ('Changing teams')
					for index, child in pairs(game.Players:GetChildren()) do
					child.TeamColor = BrickColor.new("Really black")
						wait (initaltime)
							print ('Teleporting players and resetting values')
							local a = game.Players:GetChildren()
    						for _,v in pairs (a) do
       						if v.Character then
            				v.Character.Torso.CFrame = 			CFrame.new(Vector3.new(math.random(1,100),math.random(1,100),math.random(1,100)),v.Character.Torso.Position)
							playersAlive = playersIngame
							print ('Let the games begin')
							end
								end
									end
										end
											end
												end
													end)