Why does the players team only show on the local players screen?

so I am making UI for when a player joins the game, You can choose two sides: Britain And Iceland. The UI works but when you change teams it only shows up on your device. it works in singelplayer but when i do a teamtest it breaks. No error in output or anything

SCRIPT:

local BritainButton = script.Parent.Britain
local IcelandButton = script.Parent.Iceland
local YouROT = script.Parent.YouAReOnTeam
local ClickSound = script.Parent.Click
local Teams = game:GetService("Teams")

--Teams
local Iceland = Teams.Iceland
local Britain = Teams.Britain

--Britain Button

BritainButton.Activated:Connect(function()

	local Player = script.Parent.Parent.Parent
	local PlayerNamee = Player.Name
	if Player.Team == Britain then

		YouROT.TextTransparency = 0
		wait(1)
		YouROT.TextTransparency = 1

	else
		ClickSound:Play()
		game.Workspace:WaitForChild(PlayerNamee).HumanoidRootPart.CFrame = CFrame.new(Vector3.new(-13579, 30.812, 545))
		
		Player.TeamColor = Britain.TeamColor
		--Player:LoadCharacter() 
		script.Parent.Enabled = false
	end

end)

--Iceland Button

IcelandButton.Activated:Connect(function()

	local Player = script.Parent.Parent.Parent
	local PlayerNamee = Player.Name
	if Player.Team == Iceland then

		YouROT.TextTransparency = 0
		wait(1)
		YouROT.TextTransparency = 1

	else
		ClickSound:Play()
		game.Workspace:WaitForChild(PlayerNamee).HumanoidRootPart.CFrame = CFrame.new(Vector3.new(-13579, 30.812, 545))
		
		Player.TeamColor = Iceland.TeamColor
		--Player:LoadCharacter() 
		script.Parent.Enabled = false
	end

end)

Here's an image of the explorer:

https://imgur.com/N7yzOdH

Here's an image of the UIi:

https://imgur.com/Msn1PGp

Video(Bad quality ) https://gph.is/g/E3pQBoO

Thanks in regard.

maggi124