Momentum 4 - double tap during a call issue (I lose sound completely)

I use M4 for calls (Google Meet). but quite often when I `double tap` (to mute myself), I can hear ding-dong sound and then I lose sound completely (and i had to change BT codec to regain sound again - works kind of a 'reset' ?) instead of just muting.

it happens with CVSD and mSBC.

Anyone had that issue ?