[Kiloku]

I've used the Search feature and found topics where people had similar issues, but none solved my problem.

I run the launcher and pick 1366x768. If I close the launcher and come back, it's still picked, so I know it's saving my choice.
But if I run the game, I'm stuck with black borders on either side of the screen at all times (menus, mainhalls, briefings, video cutscenes, gameplay). 
If I run the game with -window or -fullscreen_window, they are sized at 1024x768 as well.

I'm running on Intel Integrated Graphics in a Core i3-5005U processor.
OS: Windows 10 x64.

[niffiwan]

Have you tried adding "-res 1366x768" to Advanced Settings, Custom Flags?

[m!m]

Try enabling the "Use a different registry path" option in the advanced setting in the launcher.

[Kiloku]

Try enabling the "Use a different registry path" option in the advanced setting in the launcher.

This worked, thanks.