Sound when time is running out

Sound when time is running out is not working, option in settings is turned ON.

It occured first time several days ago.

I THINK YOU HAVE TURN OFF AND ON

Which sound set are you using?

It is possible you had the tab muted or didn't have the volume turned up.

It happens to me when the time goes under the beep and you restore with increment, it never beeps (in that game) again. Can I suggest that it does to alert you again?

Guys, thank you for your comments)
I have turned off and turned on the setting
This sound worked before, but now it doesn't
And I hear sounds when I move a figure

I have exactly the same problem. Tried all the things. Still not working!

Same for me too.
Im using Chrome btw

#1 #6 why not answer #3?

@thibault I am using the default soundset, but to be honest, I don't know what a soundset is nor how to change it.