This might be a silly question, but I have CDLC working for me. However I have noticed from time to time some of them just don't respond in the game. Like the song details page opens but when I click on play, the game just gets stuck there(before the tuning/amp load page. On the page where we can see the song completion percentage with alternate arrangements).
I have tried to repair it with the custom forge song manager but to no help. The interim solution is to remove it from the dlc folder and then import it again.
Anyone knows as to why it happens and what is a better solution, please let me know.