I built 3 large stands and it would seem that everything is fine, but with one stand the landing was on time, but when I built more, the landing was delayed by 5 or more hours. People just don’t go there. They just go there, and do not use buses. There are also bus stops and stops for service cars for each stand. Also my average stands have the same problem. They are all remote.
That’s very strange. May send a bug report (press escape) so that the devs can investigate your savegame.
Afterwards you can press the green button to send the plane away.
If it happens again only on that stand, then maybe there is something wrong at the terminal site.
Do you have inspection by ramp agents activated?
Can ramp agents reach the stands? (Service cars, car stops, nearby staff room)
If that all is fine, the ramp agents might are frozen, tray save and load.