Game wont scan any new song, after years without problem

Hello, I had 1334 songs (48 bad), and suddenly after that the game wouldnt ever scan another song whetever itd be. So tried deleting one, just in case theres a limit the game can scan (even is theres not???) and now I have 1333 and 48 bad and the game wont scan ANY new song at all. Tried deleting cache, and tried other song directories but nothing works...