This is the second time that happens to me. The playlists I do in Djay Pro have disappeared when I installed the Google Drive sync. I mean, before I had the folders inside the computer and now with the Google Drive I have synchronized those same folders by downloading the files to the computer. This I have done in case I include or modify songs, I do it from Google Drive and it automatically synchronizes me on all my computers.
But I have done it in such a way that I have the same folders in the same place. I do not understand why Djay Pro has not found the songs for me. But the strangest thing of all, is that all the playlist I had have disappeared.