As the title suggest, I have found the game fails to display 1680 x 1050 in single player mode. Instead the game loads in a narrower aspect ratio - black bars to the sides and a hidden display above and below. Displays correctly when set to 1440 x 900.
GPU: GTX 1050
CPU: i5-7300HQ
RAM: 8GB
Video Out: HDMI to 22" 1680 x 1050 display
Best