Did you have the mods before you stopped playing or is this recent? Have you waited for Overwatch to go through your town? If it's the first time, Overwatch may be taking it's time since it has to go through every household and unstuck stims, turn off radios, delete cars all for the first time.
How long do you wait before quitting the game when it's like this? A save file will almost always start playing now when it comes out of loading screen, for some reason they don't stay paused anymore. So my suggestion would be to pause the game and wait to see if you get any notifications in the right top corner.