I am having an issue with WAV files on my A45 when I transfer them from Musicbee. They look fine on MB and have all the normal tags and artwork. However, on the Walkman the track numbering seems to be ignored and the tracks are in alphabetical order. All other file format (FLAC, ALAC, MP3, etc) are fine. Does anyone else have this issue? Have you been able to fix it?

Thanks.