Exporting groups as VCards

Does exporting groups from my PNAB as vcards work? I can export single contact from my PNAB and import them into other users pnab’s no problem. However when I try to export groups, it creates the .vcf file OK, but when I try to impport it into a.n.other pnab nothing happens. The group does not appear in the Groups view. Notes does appear to recognise it as a vcard and opens the address book . “Invole Notes on VCards” is ticked.