Nevertheless, you are not following the recommendations so its hard to troubleshoot… TRY rebuilding the cache and if it works… then wah-la!
I still think the act of changing the IDs causes a new record in the cache.
i wasnt rebuilding the cache when trying to use character song id values… when i recreate them with numeric ones i do not rebuild the cache either and they work just fine.
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!