Blender and especially mesh is all drama at it’s own. With hifi it’s more work , you need to savae it in blender to obj, then convert it to fbx. To dioscover that the size is wrong.
If you use OBJ there or no colors or textures.
Or it end at 0,0,0 and you cannot do anything with it delete fails too.
We need to wait longer foir doing soemthing.