Radar Varia 515 Muted issue

On Radar Varia 515 I set the radar on Muted (no sound notifications of oncoming traffic). After the restart of K2, the radar is still in Muted mode, but there ARE sound notificartions turned on (which should not be, since it's on Muted).

To mute sound again, I have to press the "button" Muted, which changes to Unmuted, and press the button again which changes back to Muted - and then sound notifications stop.

Please fix that bug, its so irritating pressing that button twice each time I start K2.