Recently none of the songs I've added to the DLC folder have appeared in the library, the tracks I've deleted still appear though. Even after deleting Rocksmith 2014 from Steam and reinstalling I still have the exact same tracks in my library. It's got me baffled and any help would be greatly appreciated.
I have a similar problem, all of the dlc I've downloaded recently doesn't show up in the library. I've tried replacing the root file but nothing seems to work. I've tried deleting songs completely from my DLC folder but they still appear there whilst the new songs don't it's really frustrating.