Go Live only transmits game sound and mic, not sound from other programs like VoiceAttack or Spotify

When testing Go Live playing Elite Dangerous I got feedback from others that they only heard game sounds, but not the Text To Speech voice confirmation from Voice Attack (a program that uses macros and is activated by your voice commands).

Seems Go Live exclusively transmits sounds only from the streamed game and your mic, and excludes all other sounds.

Please make it so it transmits all sounds coming through the selected audio speakers.