I've been having issues with the MS Teams desktop app since I updated to Mac Mojave last November. When in a call, my camera and speakers work, but my microphone doesn't work (either the internal Mac or any external headset).
I'm using Mac Mojave 10.14 and MS Teams 1.1.00.31953 (updated on 10/12/2018).
Any other communication platform (Skype, WebEx, etc) work.
Thank you for your help.