Default Can't copy Flac files to SD

Hi I am trying to copy some flac files to my HTC ONE but when I try this is copies the first file and freezes, this used to happen on my one x. Any ideas why this is happening, I am currently using SkyDragon 10.0
HTC G1 - Since departed

HTC Desire - Runny Rom 7.0.2

HTC One X - Viper 2.1.0-(Now Stuck in APX Mode awaiting a fix)

HTC One X+ - Viper 2.03

HTC One M7 - not rooted