I had this exact problem - admittedly with only 3000 tracks and it had me stumped for ages. Would hang on selecting root playlist, although all tracks/albums etc could be individually selected or played - no corruptions (well, a couple, but just audio glitches)


My brother came up with the fix - it was to do with the playlist properties. The upgrade to 2.0beta7 seemed to set all of them to the 'play 1 selection' option (can't remember what it's actually called and I don't get home from work for a couple of hours yet) but new albums I added allowed for full selection. I simply selected the root playlist and chose the other option in properties.


I'll edit this later with the correct property name.