I have pinpointed this issue to "Record microphone in separate file".
Is this a common issue? Whenever that option is ticket I can't upload the video to adobe premiere as it gives me an error on importing.

Hey man. Can you check whether you have an option "Record microphone in separate track" is ticket? It seems to cause problems for me when I am uploading to premiere.

Ok. So whenever I am recording Arma 3 (Either windowed or fullscreen) if the tick box for "Record System sounds" is not ticket, the sounds of Arma 3 do not get recorded. If I do tick that box and record, there is sound but I cannot upload the video into Adobe Premiere, because it gives me some "Gene...