[Roy Mishali]

Thanks Phil!
Good idea to use ‘Rotate Display’ from NVIDIA control panel, i haven’t tough about it.
Now the video is displayed correctly. 🙂

I just need to remember to change it back after I’m done with Vegas, because all the windows are flipped, even the mouse cursor goes the other way lol.

—
As I’m writing this response, I found out what caused the problem.
There was a checkbox I had to uncheck in

Options>Preferences>Preview Device>Use project output rotation setting

It was marked for some reason.
Now everything works fine, Phil.
Thank you for your help!