Murena 2 - Bluetooth headset does not work properly when changing apps

My Murena 2 does not work well with bluetooth. If I for example are listening to spotify via a bluetooth headset and changes to another app, or youtube via a browser the sound is not working. It is only silence. I have to turn of bluetooth and turn it off again to re establish the connection to my headset. Now the sound works again.
I have tried different headsets and connection to my car audio. Same problem.

Any tips or tricks to solve this?

Regain your privacy! Adopt /e/OS the deGoogled mobile OS and online servicesphone