I'm on a 2017 MBP, with MacOS Mojave (10.14.6)

In game mic does not work, but I can hear others and I can see my mic icon appear. Nobody can hear me.

Tested mic and settings on other apps (e.g. discord, steam, hangouts, etc.) and they work just fine. Tried re-installing everything (steam + TTS), but still it doesn't work. Any help would be appreciated.