RemoteFunction doesn't fire under PlayerAdded?

The client sends a message to the server after a class is selected from a UI. The server sets up default DataStore2 values and listens for updates to send info back to client. My idea was to have the RemoteFunctions's server invoke add the class to the datastore and send the class back to the client (for stats gui). The function does not fire inside of PlayerAdded. Suggestions?

--server
data.Combine("DATA","gold","sh_coins","class")

spawn(function()
	glbs.Plrs.PlayerAdded:connect(function(Plr)
		
		local goldstore = data("gold",Plr)
		local shcoinstore = data("sh_coins",Plr)
		local classstore = data("class",Plr)
		
		function callRemote(remote,value)
			sendDataToClient:InvokeClient(Plr,remote,value)
		end
		
		callRemote('Gold',goldstore:Get(500))
		callRemote('Stronghold Coins',shcoinstore:Get(0))
		callRemote('Class',classstore:Get('None'))
		
		goldstore:OnUpdate(callRemote)
		shcoinstore:OnUpdate(callRemote)
		classstore:OnUpdate(callRemote)
		
		classSelected.OnServerInvoke = function(plr,Class)
			print('class remote called: '..Class)
			callRemote('Class',classstore:Set(Class))
		end
		
	end)
end)

--client
local function connectClasses() --to play button
	for _,v in pairs(menuclass:GetChildren()) do
		wait()
		if v:IsA('TextButton') then 
			if v.Name ~= 'Back' then 
				local inf = tinfo(.5,Enum.EasingStyle.Elastic)
				spawn(function()
					v.Button.MouseButton1Click:connect(function()
						--print('clickitied')
						spawn(function()
							ClassSelected:InvokeServer(v.Name)
						end)
						local goal = {}
						goal.Position = menuout
						local t0 = twn(menuclass,inf,goal)
						t0.Completed:wait()
						gbls.Debris:AddItem(startmenu,0)
						spawned = true
						main.Enabled = true
						cam.CameraType = Enum.CameraType.Custom
					end)
				end)
			end
		end		
	end
end

--update stats on data load (handled by server)
function updateStats(stat,val)
	menuf[stat].Text = stat..': '..val
end
--listen for data load
StatUpdate.OnClientInvoke = updateStats