unable to delete music from file

Expected behavior

After listening a song, if the song does not look good then you definitely do not keep the song in your folder ? so i decided to delete it , but i was unable.

Actual behavior

showing zero tracks deleted , tried different songs also, but couldnt deleted song

How to reproduce

• download the vanilla app
• launch it
• goto file
• goto the directory path of the music try deleting the song

• Browser: symphony v75
• Operating system: Android M OS 6.0

Recording Of The Bug