To be a completionist, and for fun, I created a separate profile for every skull in the game, so I can resume game and be right before any skull. If I log into my online account, every time I load a save, it gives that message, saying I can't save achievements. I thought at first it was because I did those missions (a long time ago) while in offline mode, but I just replayed a level while in online mode and saved right before the envy skull a few days ago. I would load that save, and it would NOT give that message. Nothing has changed, but now today it IS giving that message. It seems that playing in online mode won't prevent the message. Is there any method of stopping this message from appearing? It's so annoying, since it comes up every time I even reload a checkpoint while playing a level.