EXport Video

I’m using Harmony Stage Essentials version 12. I pay 23$ a month.
I am trying to export a movie for my game but nothing happens. When I click on the video or sound options same thing – nothing.

I should be able to export 2K resolution with my subscription status.2048 × 1536.Right? My video is 640 x 960.

Any Help greatly appreciated.
Thanks!