After new update in my galaxy a51 the lockscreen live wallpaper not showing properly in wallpapers settings menu

Dosto me airtel user hu.mere pas a51 se pehle oppo ka f3 mobile tha.usme kbi b koi network issue nhi aaya but isme Airtel use kar rha hu to muje call drop,aawaz ka proper nhi aana like 2 word sunai denge to 2 bich me mute ho jaega or ye problem conti...