[Zubersoft]

Please try something for me - backup the library on one of the devices where the audio file works correctly under Settings->Backup and Restore->Backup Library, transfer the .msb file to the phone, then restore it under Settings->Backup and Restore->Restore Library from Backup. Does the audio file work correctly after doing that? If even that doesn't work, then something else is going on and I may need you to share the backup file with mike@zubersoft.com.

Mike