Audio player won't stop after Wifi changes

[yvtr]

v3.0.2 Android version
(Device: Huawei P20)

If wifi changes during playback of MP3, the player shows stopped, but the song will be still playing in the background. You cannot stop it just kill the app. If you start the player again during the background playing, you will hear even two songs parallel!
Wifi change: you switch on/off manually or the device has poor wifi signal

[Nomalah]

I will try to get this into 3.1.0 but more likely it'll get into 3.1.1.