May be try existing the Sim and re-enter? I have saved it several times now and every time I return back to Sim it's the default again!
I tried it, and it works, I just don't see the point of posting a video showing the long MSFS loading progress bar. Which is also why is said restarting the sim it functionally identical to restarting the Couatl engine, from a GSX point of view.
In any case, I tried it again, just to be 100% sure, restarted the sim, and the configuration is saved, and the cones alway match the configuration. The exact procedure was:
- Start the sim, verified the cones are showing and the traffic cones option is checked, which is the default from the GSX internal database for the 737-800
- Edit the airplane, disabled the cones, they disappeared immediately
- Exit the sim
- Restart the sim, no cones as shown, the option in the airplane page is not checked, as expected.
Have you tried with a new profile, starting from the Reset button ? A possible reason for not saving the profile, it's some kind of error in the .INI or something that is preventing it to be modified, for example having it opened in another external editor as well.