I submitted a bug report ACEO-28812 for the passengers just staying in an area just after security checkpoint and before customs. It seems they are related to a flight that isnt there as when other planes come, other passengers dont have an issue and go right through. I’ve tried just about everything with zones, doors, etc restarted the game to no avail. Any assistance would be appreciated
You need a way for these passengers to get out as they have missed their flight and cannot pass through passport control as the flight has gone/not arrived. Build a secure exit there and they will leave.