WebDAV file info, type and last modification empty

I am using LV2013 SP1 and working to replace existing FTP functionality with WebDAV. 
For this task, I need to get a listing of files (*.tdms) on the RT (cRIO) and allow the user to select those for transfer.
My current FTP method displays name, date & size in a listbox for sorting and selection.
Regardless of whether I use WebDAV Synchronous or Asynchronous VIs to retreive a directory list, the file info's cluster type and last modification elements are empty.  The RT has WebDAV Server 13.5.0 installed.
I did notice that the type is populated for text files (text/plain), but last modified is still empty.
I'm guessing the MIME type of TDMS files doesn't exist?  I don't require that information for sorting.
However, the last modified information is very important for my applications & users for sorting the file list.
Could this possible be an issue with any RT settings or missing software?
Thanks for any suggestions/assistance.
James
Systems Engineering
LabVIEW 5.0 - 2014
Solved!
Go to Solution.

Hi Thomas,
Thanks for the response.
You can use the NI Example Finder and enter "WebDAV" to locate the WebDAV Data Acquisition.lvproj and simply run the Windows WebDAV Sync.vi to see the problem with WebDAV Asynchronous VIs.  
I decided to use WebDAV Synchronous VIs in my application, but see the same problem.
Here's the WebDAV section of my code.
Thanks for any suggestions.
James
Systems Engineering
LabVIEW 5.0 - 2014

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