The stack with the Hair&Fur modifier is not collapsed.

For correct rendering of fur, mr prim must be enabled in the Effects section.

! Please note that the stability of the render depends on the amount of RAM in your computer. Always save the scene before rendering the fur.

The export file (OBJ) is missing the Hair and Fur modifier,
that's why the file contains guide splines and the archive contains an image with modifier settings for Corona.

For close angles, you can increase the density of the hair (Hair Count) and hair Segments in the General Parameters tab. Currently, these parameters are at a minimum.

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR