Game captures

it isnt using screen capturing but game capture, this means it will only capture the game and nothing else. completely normal.

Try going into Settings, Preferences, and then Capture & Share.

From there check to see if under Capture in the first block that says, "Allow game captures", and see if it either shows: "Captures by me or games" or "Capture by me."

If it says, "Don't capture", then change it to either one of the other two options.

A lot of the more serious Twitch users use capture cards like the Elgato Game Capture
www.elgato.com/.../game-capture-hd60

This will include all video and audio.

Here are my settings:

allow game captures: captures by me

record what happened: 5 minutes

automatically upload: captures by me

game clip resolution: 720p SDR

Capture location: internal

Captured by me or games, 30 seconds, Captured by me or games, 1080p SDR, internal