Q: Importer not showing subfolders but all media

Im trying to import some files which are in a subfolder in my documents, in the importer window i can navigate to the my documents folder but then all the media which is in that folder is showing and not the next line of subfolders, so i have several thousand individual files loading rather than the ten or so subfolders. I can't see anything in my preferences and I know it wasn't like this before. I have included screen shots of the relevant areas.  Any help?

Thank you