@ lukemcd,
Not sure what problem you have but i’ve been using flac’s for a long time on 6 different firmwares.
First off Flac files can’t use ID3 tags they use a different tag format… Not sure what OS your running
but my tagging software on my Windows tags the files fine and i also added cover art through the tagging app
and or with folder.jpg both work fine, my advice is just make sure the sizes of images are not too small…
MAKE sure your tags are correct before you blame sansa !
*Some downloaded pirated music have bad tags 
the only bug i rememeber hearing was the Album Artist Tag and i think they fixed that long ago…
obviously their is bugs but i see some people that could simply fix things if they spent some time and effort
