Unity bug about ios audio

I use Unity to develop ios game.The game background music playing.

If I am in the process of playing the game through the iphone drive-by-wire play music in the music software.it will terminate my unity game music.And is not reversible.That is to say, even if I again I suspended the iphone music music player.No matter how to play in the unity can’t again let unity play sound.Any sound.The whole scene of music can‘t play.Only switching scenarios can play music

Have a solution? thanks!!

Hello?
Some people?