So, i renamed the files and tried to replace the model in the asset editor again, and the model again did not appear. Also i got two warnings and one exception from the modtools debug console.
The warnings came, when i select the ripped asset (Highrise.fbx for example) and the exception, when i press continue.
[Log] : FBX SDK Version 7.4.0 [Importers, Native - Internal] ()
[Log] : FBXImporter instance created. [Importers, Native - Internal] ()
[Log] : ***Creating Texture processing Thread [1] [AssetImporter] ()
[Log] : ***Created Texture processing Thread [1] [AssetImporter] ()
[Warning] : mesh Highrise_hiden-hitech04_0 has to tangents. Recalculating. [Importers, Native - Internal] ()
[Warning] : LOD Builder: no source Mesh found [AssetImporter] ()
[Exception] : NullReferenceException: Object reference not set to an instance of an object (ImportingAssetBuilding.InitializeObject ()
ImportAsset.FinalizeImport ()
AssetImporterAssetImport.OnContinue (ColossalFramework.UI.UIComponent comp, ColossalFramework.UI.UIMouseEventParameter p)
ColossalFramework.UIComponent.OnClick (ColossalFramework.UI.UIMouseEventParameter p)
ColossalFramework.UI.Button.OnClick (ColossalFramework.UI.UIMouseEventParameter p)
ColossalFramework.UI.UIInput+MouseHandler.ProcessInput (IInputTranslator translator, Ray ray, ColossalFramework.UI.UIComponent component, Boolean RetainFocusSetting)
ColossalFramework.UI.UIInput.ProcessMouseInput ()
ColossalFramework.UI.UIInput.Update ()
)
Is the asset broken, or do i have to remodel it or something like that?