Roblox updated today, why did my entire game break?

today roblox updated like any normal day i go into studio and test run just to remind myself what i got so far but no not this time roblox has decided that my game should just suddenly be broken for no reason so ye here is the error

SetCore: TopbarEnabled has not been registered by the CoreScripts

and here is the code that apparently causes it

game.StarterGui:SetCore("TopbarEnabled", false)

this code can be fixed with a wait before it however doesn't work with loops waiting until there done or anything just waits cause that makes the most sense apparently

idk about the update dude but this will fix it:

local TopBarSuccess
while TopBarSuccess ~= true do
	TopBarSuccess = pcall(game.StarterGui.SetCore, game.StarterGui, "TopbarEnabled", false)
	wait()
end