I am running Version 4.4.4 RC2 with a mixture of FLAC and MP3 files. I am using a Denon 4308CI and an Archos 605 as clients. With both clients, many of the FLAC files appear in the Music Tree as "unkown" artist and "unknown" album with the filename listed as the track. When I select one of these files, the tags display correctly. I've looked at the tags and can see nothing wrong.
I've tried rebuilding the database, deleting the database and rescanning with no success. Any suggestions?