I have the same issue in version 1.7.5.0
In the English language I see N/A but when I change to Dutch language in the back office all is ok.
We need to have it in 2 languages working, because not all people working on the site speak/read Dutch properly so we have to use English as well.
Is there an easy fix for this found already for this issue?
PS. When I import the product all is ok in both languages
UPDATE:
When I change the product name in the default language (English) nothing happens and name stays as the old name, but when I change the back office language to dutch then you see the change you have made in the name field.