Hi, I have a Samsung S10, Android 11 - UI 3.1 - Since about 1 month after one of the updates, something has changed with the volume up/down button which now shows 3 dots at the top and brings you the volume options. Since this change, I realize that the notifications volume regularly turns off. I have to then go into this menu and turn the volume for notifications on again (4th line with ''bell'' icon). This is driving me nuts. Can anyone help me understand why this is happening ? Thanks 
