Face groups lost

THE PLATFORM:Windows
NOMAD APP VERSION: 2.9.8

The FBX file exported from Nomad retains face groups when opened in ZBrush, but loses them when opened in Nomad itself. I originally thought losing face groups was normal, but today I imported it into ZBrush and the face groups were preserved, which means losing face groups is not normal.

Fixed. The OBJ format can preserve face groups.