FXSound making random notification noise when a keyboard button is pressed

Just downloaded this app an hour ago. when i pressed keyboard buttons such as esc or S or D, a windows notif sound appear. nothing else happen when i press those buttons. i tried disabling all setting in General, but the sound is still appear. the preset is unchanged, no new windows popup. im using v 1.2.6.0, the check for update is unable to get any update. im using windows 11, latest version.

The versions after 1.2.6.0 are not promoted from beta.

You can download and install the latest beta version 1.2.10.0.

What is the keyboard combination that you are trying to use with hotkeys disabled in FxSound?