I got the exact same issue. Even if I try to kickstart it by beginning a new day cycle, it goes back to black. Also, when I first loaded my saved game, all my characters were stuck in an overlay that covered my other screens: items, goal, etc… There was no way to get the house or town to load properly or switch between the two.
The loading is currently broken, no nice way to say it. Next update should have it fixed, as this is something I’d hate to see later on when game sessions will be longer.