Very random bug here, watching my latest airport, Cyprus Nicosia (Fictional) working nicely and then suddenly international zone pathfinding errors for every single passenger.
The international zones are still coloured, but the label has vanished. I’ve had the label situation before but it came straight back when reselected zoning view. But this time around the zone has actually vanished completely causing pathfinding chaos
If i rezone any of the tiles already coloured blue, the zone count starts again and each new “patch” of Int’l zone I draw acts entirely independent of the one large zone already there.
As shown in screenshot, all departure passengers now have a error flag and effectively locked to their current tile if their tile is what is currently international zone but now no longer functioning.
The only event I can see as a potential trigger is an emergency which was a aircraft which ramp agents discovered a fault with however all those departing customers vacated the departure lounge areas via the customs exit and secure exit (far right) without issue.