Legion Go rotates when connected to pc through capture card

Hey all.
I got my Legion Go yesterday along with the dock. I am trying to play Valorant on it and the problem im having is that the Legion Go is flipped side ways on my monitor which I have my capture card connected. When I connected it first it didnt go like that. I loaded up Valorant and the game turned sideways for whatever reason and now the console is the same on my monitor. The display looks fine on the console itself though. Whats the problem?