Export video with 2 audio tracks.

I google some and found videos at Youtube how to export a video with 2 audio tracks. But I don't seem to get it right. Can anyone help me please?

This my current mixer setup:

Screenshot 2021-01-03 170555.png (31.17 KiB) Viewed 269 times

How I export my video:

Screenshot 2021-01-03 170719.png (618 KiB) Viewed 269 times

What am I doing wrong here? Because I cannot get it to work, did I miss something? Did something change?

There's actually a new forum for version 17 that we're supposed to use.

17_Forum.png (60.2 KiB) Viewed 265 times