Um. Since you've done this before I'm assuming they are in the right place. Reassign the app id again. Just try it. If that doesn't work, repackage them. There are only 2 reasons they won't show up, assuming the are in the right folder, wrong APP ID or wrong format m.parsc instead of p.pasrc. but again, try to repackage the ones you are having issues with. OR you didn't allow the game to enumerate the new content. Don't add songs with the game running. If you do make sure to go to the store in game then back out. But I always close down the game when adding songs.
- bustakun likes this