All of my mp3s have the information on the artist, album and title, but in Windows 8 (RTM, 90 days evaluation version) music app all of them are from Unknown artist with unknown title and unknown album. In Windows Media Player, all of these informations are displayed correctly. The files are the same, and ID3 tags worked well in both W8 Consumer Preview and Release Preview as well. Now, only 4 of my files look correct in music app, and I don't know why exactly these 4.
Can anyone help me about this problem?