Cannot see chordpro files Songbook+

[Tonyo1000]

Hi,
Has anyone experienced problems importing chord pro type files into Songbook+? 

I am attempting to move files from an app I use called SongSheet Pro into Songbook+.  I have been successful in importing pdf's but not chord pro file types.  According to the (sparse) manual, Songbook+ is supposed to read chrod pro files.   The import process seems to be working correctly, just cannot see the files in Songbook+.  I verified that the file was transferred by looking in iTunes, Songbook file sharing folder.