Update: If I keep the game open and keep the chief 'directing' their work, they make progress. But I just closed the game for about 30 minutes - reopened it and they were not working, no progress made and yet immediately all headed up towards the hut with the 'building a hut' description. WHY will they not work on that hut without the game being open? Do they finish projects in the order they were started? (because I started them clearing rubble first - and that's where they all were, though they're not making any progress on that either, in terms of percentage completed). Any advice/info will be appreciated. On the one hand, the game will 'last' forever if I have to finish all the projects with the game actually open - but it's nice to be able to get them started and let them work like in the previous games.