I actually noticed this in 3.6, but we really have not had to change TDP operation since then, so it had little or no impact on us.
It seems as though the column details do not display when you go to Object Explorer > Database Name > Table Name > View Details. Clicking on the Columns tab shows a blank screen. What is interesting is that if you click on the Data tab, you can see everything in the table including the Column Names.
See the following: