Where do you create Players.Slaughters.Value
? on the server or on the client? wherever it is created that is the only place it can be changed. If it is created on the server, adding to it or printing it locally won’t show any change. Try adding/printing the Players.Slaughters.Value after you send the Value to the server in:
game.ReplicatedStorage.SlaughterUI_Events.Event2:FireServer(Value)