Looks like your security is all in one zone, correct? If that is the case, it will happen that PAX will use a security station on the far left and have to walk to the far right to get to their gate. Please have a read through this guide where I tried to explain how you can setup different security zones in your airport. Please note that the mentioned bug is still there, so if you had connected secure zones only a save and reload could undo that.
If you want to have separated secure zones, check to which boarding desks the security stations are connected, if they are connected to all boarding desks, you have some work on your hands…
If that is the case I would suggest to try the following as a step by step:
- Delete a secure zone, i.e. the top left, including where the walls are as zones run through underneath walls. Delete a little bit more than you want, to be sure zones are not connecting anymore
- Save & reload
- Draw the new secure zone in that area not connecting to any other secure zone
- Save & reload
- Check if the security station(s) in that area are only connected to the stands in the newly created secure zone, if that is the case repeat these steps for the other zones you want to create
- If not… Try to remove the security station(s)
- Save & reload
- Build a new security station in that zone
- Check if the security station(s) in that area are only connected to the stands in the newly created secure zone, if that is the case repeat these steps for the other zones you want to create
Hope any of this works.