unable to send music from file to playlist

Expected behavior

After getting a particular music from file folder, you wont want to go to file again to get the music, so i decided to add it to a playlist, but i was unable.

Actual behavior

showing zero music was added, tried different playlist and created also, but couldnt adda song

How to reproduce

• download the vanilla app
• launch it
• goto file
• goto the directory path of the musc
  -try adding the song to playlist

• Browser: infinix note 4 pro
• Operating system: android 7.0

Recording Of The Bug