Don’t worry. I don’t think your cubox is defective.
I have myself a Cubox-i4 Pro and i can confirm that the path to get Volumio working on it is not as straightforward as with the Raspberry Pi (i have one also).
There isnt even coming any light from the optical S/PDIF.
Audio output is set to imxspdif
Volumio pretends it´s playing sound, with seconds ticking away, etc.
This a know issue. Michelangelo has worked on a new kernel that solve both wifi and S/PDIF.
Have a look at this post to know how to install it : http://volumio.org/forum/#p5495
I can confirm that on my install with this new kernel sound over S/PDIF is working (with this known limitation due to the Cubox : http://volumio.org/forum/why-does-volumio-downsample-48khz-spdif-t1422.html)
Volumio forgets the content of the media library after reboot
Library is on NAS, access via SMB.
I could not get NFS to work.
I have to manually start a re-index upon restart, to see any songs.
I’m using myself NFS. But i know that SMB is problematical. Have a look at this post :
http://volumio.org/forum/smb-cifs-shares-volumio-t1461.html. Maybe you will find a solution to your problem.
Thumbdrives are not recognised
Both FAT32 and NTFS
I have read other persons on the forum reporting the same issue. Use the search engine. You may find somebody who found a temporary solution until Michelangelo improve Volumio.
Library often becomes unresponsive and just shows the spinning arrows.
Stays this way until I reboot the box.
Also playlist gets deleted for no reason.
My library has 16000 tracks
The library tab unresponsive is a know issue :
http://volumio.org/forum/volumio-bugs-t1325.html. Michelangelo is working on improving this functionality or allowing to disable it.
For your Playlist getting deleted, have a look at this post : http://volumio.org/forum/repeat-function-t1473.html
Don’t forget that Volumio is still in an early stage. Michelangelo keeps on improving it release after release. This is thanks to bug reports like yours that Volumio will improve. But you may have to be a bit patient.
Hope this helps.