I got my brother Fetta headphones and downloaded over 100 songs on a 32 GB micro SD card to put in the micro SD card slot in his headphones, but it plays the same 20 songs over again after it hits 20 it starts over even though it has all these other songs that work. I tried putting it all in one folder but it still does it. I have songs on another SD card and it does the same for that one. How do I get it to play through all the other songs?