I see, you created a customized view scheme. Does the same condition exist in the standard view? Audio->Album?
I've just added Audio > Album to my customised view for JRemote, etc, and that does indeed reveal the missing buttons when I select an album and display its track listing. However, it's not yet obvious to me why my normal track listing fails to show those buttons. It doesn't appear to be something that is explicitly mentioned in the customisation dialogue box.
EDIT: To be more specific, the customised view that fails to display those buttons has been given the name 'Classical DSFs' and, as its name implies, the rules for file display are that Genre = Classical, Media = Audio and File Type = dsf. The 'Show Categories In This Order' setting is Sub-Genre, Composer, Album, Work, Name.
The example shown in my screenshot above has the following metadata settings.
Sub-Genre = Chamber
Composer = Beethoven
Album = [SS] String Trios, Op 9
Work = String Trio in G major, Op.9, No.1
The screenshot shows the associated four track names, which are the movements for that string trio.
It's not relevant to the current problem, but just in case anyone finds the SS prefix in the album title a little puzzling, I rip my SACDs three times, to get FLAC files for the CD layer, DSFs for the stereo SACD layer and DSFs for the multi-channel SACD layer. The three resulting albums are distinguished by the prefixes CD, SS and SM.