Beeps on mute/unmute

Hi all.   Having an experience that drives me crazy.  My company uses zoom through Okta SSO.  Every time I am in a meeting/call, I get a beep noise in my Plantronics headset every time I mute or unmute.  This never happened in several years of previous Zoom use, and weirdly stopped happening for a few days. Then started again without any action from me.

I can find any settings in the web application that address is.  Help!