Backup all the content of your SD card, format your SD card then put back the content of your SD card into it.

Thanks. Although I tried putting it over a different song, before seeing this, and it worked fine.

Question: I downloaded Sorairo Days and put in into project M 3.0 and replaced Giga Bowser (Melee) on Final Destination. But after a while the song started to crackle for a little bit and then went back to the song. Do you know what the problem is or if there is a fix?