Here is my config for three 4k monitors. You could probably adapt it to your 1440p monitors. Also make sure your "Left" display is set as your main display in Windows.
Viewports =
{
Left =
{
x = 0;
y = 0;
width = 3840;
height = 2160;
viewDx = -1;
viewDy = 0;
aspect = 3840 / 2160;
},
Center =
{
x = 3840;
y = 0;
width = 3840;
height = 2160;
viewDx = 0;
viewDy = 0;
aspect = 3840 / 2160;
},
Right =
{
x = 7680;
y = 0;
width = 3840;
height = 2160;
viewDx = 1;
viewDy = 0;
aspect = 3840 / 2160;
}
}
UIMainView = Viewports.Center