KDE somehow mute Konsole, yet IntelliJ terminal plays "beep" sound as normal

I found out that the "beep" sound is only produced inside of the IntelliJ's (RubyMine to be more specific) terminal. All tput bel, echo ^G and echo $'\a' produces a normal annoying sound. On addition it is played as normal if i use backspace when line is empty, or for example an right arrow when i reach the end of the text. But when i run Konsole app (or Yakuake) it is completely mute. I have the **"Play sound"** option for **"Bell in Focused Session"** event checked, in my Konsole > Settings > Configure Notifications (pic rel). The play button, visible on the screen below, doesn't produce any sound neither. This produces a sound: This does not: