Sound still plays at 0% volume

Adjusting the volume to 0% in options, the sound is not completely inaudible.

The bug

In Music & Sounds in Options, there's another 0% before "off", which is counterintuitive.

Also, when it shows 0%, the music sound can still be heard, although with a low volume.

Expected bahavior:

There's no 0% before "off". Instead, it shoud be from 1% to 100%