It sounds like the Import command used was not associated with the folder navigation "view" (or whatever it's called) -- I don't have 7.3x running anywhere right now, so this is just a gut response based on a vague recollection of what I saw when I last took a look at that UI - and issues that the old CCStd UI had - with respect to menu options not having "context".
we found a bunch of UX issues with TeamSite UI in 7.3.2. Sent them to support to look at. Support came back saying "CCPro is recommended for all users".
"Presently, I m trying to reproduce the problem you are facing. However, our advice for TS 7.3.2 is that business users should continue to use CCPRO. The TeamSite UI in TS 7.3.2 was not designed in the same way as CCSTD from previous versions. The present TeamSite UI is designed keeping casual users as its target users. There are future plans to specialize it but not in TS 7.3.2"
"An update on my previous post: I have been able to replicate your issue. Probably this is a defect. I may have to file it. Though, please keep in mind about my suggestion in the previous post about TeamSite UI usage. "