Ok iv downloaded the CFSM app and i'l give it a shot done, CFSM dose not see the song in question. its showed up again i dont know how or why or when but the songs back
So I downloaded the song Revol, (great song) and download was fine played the game was all good turned Rocksmith 2014 off, came back turned it on and the cdlc is missing all my other cdlc is there its just this one song that is missing. i have tried; deleting it re-downloading it, re downloading the D3DX9_42.dll file, iv restated steam, and finally verified integrity of game files. any help would be great thanks.