Mute mode no longer works - It Vibrates instead. Can I please get some assistance?

[AC Question]

Mute mode no longer works - It Vibrates instead

Well, my Mute AND Vibrate modes vibrate & it's annoying.
I desperately need my Mute mode to function.
Sitting in at all the mtgs & conferences having my device vibrate every time I receive a notification is UNACCEPTABLE. I can't turn OFF my device during these sessions either.
Can someone PLEASE assist?

 

[MikeCorsten]

Re: Mute mode no longer works - It Vibrates instead

What version of Android are you running?