Anyone know if there is a setting or something so it records my game audio? Had a good run but didnt realise the audio was missing so it got rejected, any ideas?

Are you streaming it to oculus.com/casting ? If so change your pc audio to " Oculus Virtual Audio Device " and whatever you use to record it to the same.

If not then give me more details and I'll check it out.

this also happens when recording from directly within the headset, the only solution ive found id to make a test recording and reset the game if there is no audio.