Hello, I have modelled a track in Blender and exported it to KSEditor as a .fbx file, however when i launch it in assetto corsa, my vehicle falls through the map (although very slowly, like quicksand) and cannot drive. I have named the meshes according to the naming convention (1ROAD, 1GRASS, etc) and have it defined in the surfaces.ini file in the track folder, so I am not sure what could be causing this. Any help will be appreciated, and I can share the .blend or .fbx if needed. Thank you!