A bug with background running apps

[hachie]

I'm having a problem in my phone,Galaxy A21s. 

Since, I have upgraded it withAndroid 12, it got a bug. 

The bug is, whenever I exit any app while a video was running, it's audio keeps playing in the background. 

For example, 

I just exit WhatsApp while watching a status, the audio of that particular status kept playing in the background.

Can anyone please help me out?

[King-Boşş]

No
Plz update your whatapp version.
I also have same issue once a time
So, I tell to what app customer care Unit they said
Plz update app to see batter experience.

And also rebot 2 one by one when you install or upgrade the new version