When i use command ffprobe to show the tracks of this video ,it shows it has seven tracks,
but when i use vlc to show the tracks of this video ,it shows it has six tracks, one of the AC-3 track is missing
you can download the video by click the url below
https://pan.baidu.com/s/1SlhOyMEc9nIm0bcw_QiImg?pwd=a4xj