I've completed the main program and am working my way through all the travel places. Currently in ..

I've completed the main program and am working my way through all the travel places. Currently in France. 4 days ago, after completing a building, a new area did NOT open up. There is a cloud cover still on about half of the map. There is no golden padlock showing anywhere to indicate what happens next. I can still unpack boxes and merge items but there is no place to use the items because of the cloud cover. Any ideas on how to get through this snag? The app is uptodate and I've logged off, turned the ipad off/on and I'm still stuck.