Most important feature lost

[DaPas]

Spotify doesnt appear in the status bar. If i disconnect from bluetooth sound or 3.5mm headphone jack the sound doesnt stop anymore. Similar Problem with youtube: if i start a youtube video spotify doesnt automatically stop and resume anymore.
In case of that status bar problem i got to unlock my phone to change the track or pause/ resume.
Im using the model 3 of oneplus
Im very looking forward for a solution.

Pascal