Have created a new Album category and created several Albums within that category.
If you are in Media view and selecting the Album category, should you not see the album names and structure ? Selecting only albums shows the correct photographs ok.
By @doug218540579wa0
Doug,
Not sure what your are expecting, but when you have chosen the 'album' view in the left panel instead of the 'folders' view, the album category is just a way to group its albums, to collapse the list or to display the list. You can't select all the files in a category in the media view, you only select the various albums in that category. Displaying the files in an album works as expected, displaying all the files in a category makes no sense, since because albums have different sort orders.
The categories are handy to avoid a list of hundreds of albums by showing groups in a shorter list.