Doesn't happen here.
The reason why it happens on your system, it's likely because you are using a GSX customization .INI file which you made before we updated some gates and, since the user made .INI file takes precedence over the one that comes with the scenery, the gates positions are still the old ones.
Remove your .INI file for KLAX from the %APPDATA%\Virtuali\GSX folder and restart the sim ( or Restart Couatl ), so GSX will use the GSX customization that comes with the scenery, the one called "Designer-provided data"