then why is it on the default list of columns?

I wouldn't expect it to, I doubt that the Server passes this along.

yes .. the dlna client is not showing the last played column data

Are you saying the Client is failing to show this or is it not showing on the Server? If Server is the Update Playcounter option enabled in the Media Sharing options?

Column Played shows the number of times from the server but Last Played does not show the date except while it is streaming. Upon restart the dates don't show
Server: 1885
Client: 1885