Packaged game Screenshot only stretches

All the standalones in this test is from the editor currently. So a single recreation of Standalone game from editor, alt entered are expected to give bad results. As I found out that the main issue comes from window-fullscreen, I did not test the packaged content. I am not sure if you are entitled but I can even make a demonstration via any screenshare methods because it probably is the most crucial feature for us and a definite dealmaker.

The photo is either going to be used for a giant poster or be used by zooming into the details. Either way, I hope you can recreate this. Thanks for the help so far as well.

Edit: Entering 1920x1080 does not make the standalone game from editor to launch in fullscreen mode. It is just windowed with native resolution that has upper bar which minimize, maximize and exit are located.