When a save has a building unlocked that isn't unlocked by default, when you import data where that building hasn't been unlocked yet, it will show the original save's status on that building's visibility, which is the wrong visibility. It should make any buildings that are not unlocked in the imported save disappear.
When a save has a building unlocked that isn't unlocked by default, when you import data where that building hasn't been unlocked yet, it will show the original save's status on that building's visibility, which is the wrong visibility. It should make any buildings that are not unlocked in the imported save disappear.