Not sure whether it's related, but I have similar problems.
After the 6.0 update I don't have any 'recently played', 'recently added' etc. functionality.
Of course I did add stuff and played tracks recently

I tested this in the home screen web interface and via DSub for android.
I never used the starring system.
I have Subsonic installed on a Qnap ARM box using the 'All platforms' version
btw: the 'random' tab on the homescreen does work. it's the only tab that works