The problem here is, what do we do with all the user which are not using 3rd party sceneries? You plan a flight from A-B and A or B is missing in the data than …
Again, that´s not what we have in the hand … before SU10 you had the possibility to order the package for the Marketplace addons (or at the least the loading logic was a different) too but since SU10 ASOBO/MS has removed this possibility.
We had reported this in September 2022 in the MSFS Developer forum and when you read the answer from ASOBO you see that this is a MSFS “feature”. Here our original posting in the MSFS dev forum:
https://devsupport.flightsimulator.com/questions/11081/re-ordering-of-marketplace-sceneries.html
When you look on Darwikey´s (ASOBO) answer, you find following “rule”:
That means, that all packages in the Official folder will be loaded automatically BEFORE the packages in the Community-folder. All Marketplace products will be automatically stored in the Official folder, and you have no possibility from any external point to prioritize the loading order.
It´s very simple to test this scenario:
Move your scenery from the Official folder to the Community folder and add this package to your content.xml file in the order, what I have posted before. After that start the sim and you will IMMEDIATELY see the result - no double runways. So, it´s not a scenery issue, it´s not a navdata issue … it´s simple the logic how the sim loades the packages since SU10.
Cheers,
Richard