Press ESC to open the Game Menu, then go Options, when you click on Music & Sounds, it usually plays the button-click sound twice, one is when you click on Music & Sounds button, another is when you release your cursor from any another button.

This bug also happens on some other UI pages. But in summary:

• In Main Menu and Game Menu: Click Options and hold, move the cursor to FOV sliding bar and release.
• In Main Menu and Game Menu: Press ESC to open the Game Menu, there are three similar bugs:
  • Click Music & Sounds and hold, move the cursor to any sliding bar and release.
  • Click Chat Settings and hold, move the cursor to any sliding bar and release.
  • Click Accessibility Settings and hold, move the cursor to any sliding bar and release.

In addition, I believe their is another issue about button sound. When you click on any button, the sound's volume is NOT exactly the same. You can keep clicking on buttons and you will find that. The sound volume goes up and down, just like I press the button hardly or softly.

These bugs are not very serious for players, but it makes the UI weird and maybe annoying for some players like me. The sound just conveys that the click event was successfully executed. I'll be very appreciate if you can fix these issues.