Hello, we went to play STK tonight, and I noticed I had black bars on the sides of my game. I am running Windows 10 x64, on a single monitor, at 3840x2160 resolution. I verified Windows is showing the correct resolution, but every time I load STK, and try to change it, it automatically changes it to 1600x1024, as shown here. I have no idea why, but I tried changing it to various other resolutions. Are there any solutions or suggestions?
EDIT: The image below is somehow cut off in the forum, so here is the direct link. https://i.imgur.com/YI3eauN.png