Does the album art appear if you re-add the FLAC files to the library? Make sure that WMP Tag Plus is checked in Tools - Plug-ins, select the files, right-click, Delete - Delete from library only - OK. Then go to Tools - Advanced and select Restore deleted library items.
If that doesn't help, can you upload one of these files and PM me the download link so I can take a look myself? You can use Dropbox or a file sharing website like Skydrive/Rapidshare. Thanks!
If that doesn't help, can you upload one of these files and PM me the download link so I can take a look myself? You can use Dropbox or a file sharing website like Skydrive/Rapidshare. Thanks!