Maybe it is more of a suggestion then a bug?
Either way, it is not possible to see if a building is disconnected from the capitol building anywhere. It would be useful if the capitol building mentioned this in the "Info" column of the buildings that aren't connected to the capitol.
But new players will wonder about this a lot since there is no way to see this at a glace. To see it know right you have to open the Building tab of the Building window for that building.
Either way, it is not possible to see if a building is disconnected from the capitol building anywhere. It would be useful if the capitol building mentioned this in the "Info" column of the buildings that aren't connected to the capitol.
But new players will wonder about this a lot since there is no way to see this at a glace. To see it know right you have to open the Building tab of the Building window for that building.