Video not Playing all Audio tracks

[mrcavallo]

hello - i have recorded a video using Nvidia Overlay with a separate USB microphone. when i watch the video on any playback i get the sound from the game as well as the audio from the microphone.

however when i load the video into VideoStudio and add it to the timeline, i only get the audio from the game. the audio from the microphone is not there. i am sure i am missing something obvious - but i have only just started using this software. i am using 2020 ultimate version.

EDIT: i just noticed when opening in VLC player i could switch between audio tracks - System Track or Microphone

so it seems it has recorded the microphone separately. but i simply cannot find an option in VideoStudion to select this audio track.

any advice wuld be greatly appreciated.

thank you.