I recently made a custom soundtrack and it all worked well except for 4 songs that just didn't work. Not only did I replace the songs, I added more going from 20 to 34 songs. But even editing the .sound.json file, copying the file/folder into their respective directories again didn't work, and straight up renaming the file and folder didn't work. I deleted the manifest_soundtrack.dat file since it has the old soundtrack data that doesn't work and crashes the game when selected, but now I can't get this new one to work. Here are my files, hopefully someone out there can help.