[Owncloud] OC 5 No Music?

[owncloud_mailing_list at status.e4ward.com]

Hello all. I just installed OC 5 and uploaded my music library using the sync client. However, when the Media app scans my music, it seems to find no music (4.5 worked fine). The Admin log shows lines like this:

Undefined index: length at /var/www/cloud.rainveiltech.com/apps/media/lib/scanner.php#77

It has this same error for track, size, title, album, artist, etc., but I'm not sure what it indicates. Any ideas?

Kyle