So I'll be happily playing away, and for some reason, when I try to advance the game, it will only advance it a few hours. This can happen when trying to advance the game either 1,5 or 30 days. Any advice on what could be causing this, either something I'm doing (or not doing) in-game or a bug? I'm using version 4.91, and have recently discovered 5.14, so will be upgrading to that as soon as I'm done posting this.