Question / Help Streamlabs playing alert sounds for me, but not through stream

[Plum]

For a while now my alert sounds from Streamlabs do not appear to be streaming through OBS. They play through my PC audio output (speakers, headphones) when OBS is open, but it won't output through Twitch during a stream. Any idea what could be causing this?

Log: https://gist.github.com/3a6cbd0a9c1c9fa456750944b3342674

 

[Osiris]

Alerts are played through the default audio device configured in Windows, you will need to capture that device in OBS.