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MSFS20 Crash to desktop when building all due to specific objects

T

tk_506

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saudiarabia
Hello everyone,


I'm running into an issue when building all my scenery packages together, especially when the terminal models are included. During the "Build All" process, the simulator crashes to desktop. After restarting MSFS, all objects show up as "Unknown," and the model library fails to load in the world.


However, when I build only the terminal models separately—without including other objects like hangars—the build completes successfully, and everything loads properly in the simulator.


I’ve confirmed that the geometry of all terminal models is clean. In Blender, I used Merge by Distance, Delete Loose, and Degenerate Dissolve to ensure the meshes are optimized and error-free. The models open fine in Blender and compile correctly when built individually.


I've also run Clean All on my entire scenery project before building, but the crash still occurs when building everything together.


I'm not sure why this only happens when combining all models in one build. Any help or suggestions would be greatly appreciated!
 
A simple brute force method to track errors is to duplicate the PackageSources, and safely put it away somewhere. Now eliminate half the models in the package and compile. If it's now OK, add in a model from the duplicated PackageSources. One at a time until the bad model is found. If the first half is not OK, then subtract the models one at a time until you find the error.
I use this type of folder setup to make this type of error checking easier:
FolderSetup.png


The PackageDefinition XML:

XML: 
<?xml version="1.0" encoding="utf-8"?>
<AssetPackage Version="0.1.0">
    <ItemSettings>
        <ContentType>SCENERY</ContentType>
        <Title>1TA5</Title>
        <Manufacturer/>
        <Creator>rhumbaflappy</Creator>
    </ItemSettings>
    <Flags>
        <VisibleInStore>false</VisibleInStore>
        <CanBeReferenced>false</CanBeReferenced>
    </Flags>
    <PackageOrderHint>CUSTOM_AIRPORT</PackageOrderHint>
    <AssetGroups>
        <AssetGroup Name="ContentInfo">
            <Type Version="0">ContentInfo</Type>
            <Flags>
                <FSXCompatibility>false</FSXCompatibility>
            </Flags>
            <AssetDir>PackageDefinitions\rhumbaflappy-airport-1ta5-denver-city\ContentInfo</AssetDir>
            <OutputDir>ContentInfo\rhumbaflappy-airport-1ta5-denver-city</OutputDir>
        </AssetGroup>
        <AssetGroup Name="scenery">
            <Type Version="0">Airport</Type>
            <Flags>
                <FSXCompatibility>false</FSXCompatibility>
            </Flags>
            <AssetDir>PackageSources\Scenery\airport-1ta5-denver-city\scenery\</AssetDir>
            <OutputDir>Scenery\airport-1ta5-denver-city\scenery\</OutputDir>
        </AssetGroup>
        <AssetGroup Name="MyModelLib">
            <Type Version="1">ModelLib</Type>
            <Flags>
                <FSXCompatibility>false</FSXCompatibility>
            </Flags>
            <AssetDir>PackageSources\Scenery\airport-1ta5-denver-city\MyModelLib\</AssetDir>
            <OutputDir>Scenery\airport-1ta5-denver-city\MyModelLib\</OutputDir>
        </AssetGroup>
    </AssetGroups>
</AssetPackage>

This way each model exists in it's own folder, which can just be moved out of the packagesources if needed. Kind of OCD, but it makes error checking easy. The sim's compiler sorts everything out, and finds all the models.
 
Thank you very much, I know now that there is a problem with one specific model that caused the issue, Although I don't know what is causing the problem from the model is there a way to know how to find the problem in the model?
 
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