playlists skip all tracks

[philkaufmancpa]

I am running MinimServer on a QNAP NAS drive, with MinimWatch on my PC. This is all connected to my Linn Akurate DSM. Until recently my playlists worked fine. Recently that changed. When I call up a playlist, it runs through the tracks skipping each and playing none. All of my existing playlists no longer work and exhibit the same track skipping problem. I recently created a test playlist, which works fine. Can anyone suggest what my problem is and how to fix it? Thanks in advance.