see images below, first screenshot is the blender scene, i exported all the meshes from the blender scene as one FBX file. Second image is unity, notice some meshes are missing randomly??? is there some loss of information in (presumably) large blender scene/fbx file? should i be exporting the scene in smaller chunks?
tah.
if you look those missing parts from otherside, are they visible? (default shader doesn’t draw backfaces in unity)
If yes, then need to flip normals in blender.