I copy cd or sacd to my mac. I then try to copy the file to roon music storage over the network. Stalls and does not complete. Since I store my music on a usb drive I can insert the usb drive in my mac and then copy the file and then when the drive is put back into my nuc the music is seen and identified properly. I can continue to do it this way but I wonder why the copy process is not working like it used to.