Attempting to use Tweaks 2.4 (Old) and back to getting this error - any ideas? I am using other tweaks products, is there some which are specifically not compatible with v2.4? I’ve noticed when trying to use v2.4 there is no aircraft loading during the start up screen loading saves.
Also tried removing all other mods except this and mod loader and still same error trying to save any games
Thanks in advance 
Only aircraft megapack is working with old tweaks… No single aircraft packs…
Ah thank you for info! I got it working some how (not entirely sure how) but only two airlines generating flights and both use single aircraft packs from their steam download. I’ll try removing those and hopefully all other airlines will start offering flights.
Thanks
Back to error again - Has anyone managed to keep old tweaks running but with still enough aircraft from airline mods? I either get the save blocked error or no flights offered from any mod airlines 
BUG
After manually negotiating existing airline contracts, no airplane lands anymore. They stay as “en route” in the flight planner.
Mods used:
I have a save game to reproduce, where should I upload it?
It just happened also without negotiation.
I will start a new game without the mods and see if that’s a bug in the regular game
Can you show your airport layout and also the airport status panel?
those are the only runways right? they have all a shutdown symbol (or error, can’t see exactly)
i think there is no path to the small stands
No. The symbols are wrong, they come when there is only one entry. One of the runways is for starts only , the other one for landing.
They worke fine and I did not change them. You can see planes started and arrive in the flight planner, none have an error indicating it can’t land.
Also you can see no error sign on the small stands.
The big runways are shut down. As I said, it’s only for small planes atm
Can you use the plane pathfinding analysis tool and send a screenshot of it? Preferably from the runway to the small stands.
Also if you could take zoomed in screenshots too of the path so the one-way markings are readable?
I said it is working and I didn’t change the setup…
It’s not a path problem. If it would, the planes would not be “en route” but have an error saying they cannot land.
and what happen when you load airport without the Code Mods?
due to the vanilla airlines also not working, hardly think there is a bug inside tweaks (you are using new tweaks so at all there is only aircraft system for new aircrafts inside - no changes to flightplanner and scheduler)
I already suspected that it is not caused by the code mods.
So I started a new game without the mods, but this airport is still in the “GA-Phase”.
Stay tuned… it will take some time and I don’t know how to reproduce the bug yet, so try is all I can do.
Can you share your affected savegame on the Steam Workshop and put the link here?
I de-installed all mods and loaded the save.
After some time, no flights arrive anymore, even in plain game.
So I filed a bug report for the vanilla game.
Thank you all for your support
As of October 27, 2025, this topic is succeeded by the AirportCEO Tweaks Stable topic as this project shifts maintainers. All conversation of modern Tweaks versions should be moved there.
Thank you!
I’d also like to acknowledge the long history of this mod. While we move into a new chapter and topic for ACEO Tweaks, the mod still has very much the same base. May ACEO Tweaks live forever! 
