Hi, a small bug. I doubt this is game breaking, but still odd.
I placed a Holo-display factory on the map somewhere, not connected to any roads or anything, just to see what it would look like. The production overview showed it had 4 workers, which is correct I believe.
I then demolished the factory and now it shows -1 workers in the production overview. I have no Holo-display factories anywhere.
When I build a new factory it shows 4 workers again.
I haven’t tested this with other buildings.