Maybe the wrong thing is related on the aspect ratio.
Try using v1.55, in full screen, using a 4k image, resolution: 3840x2160, and let me know if error still happens.
I mean, try to make the aspect ratio divisible by your resolution 1920x1080.
I tried turning on the fullscreen by pressing F in admin mode after setting it to Windows 7 compatibility. It doesn't work normally.
%%NOTE: I uploaded the Fullscreen ScreenShot
And I tried reducing the image size to 1920x1080 again. The problem you were talking about has been resolved, but there is a strange vertical line at the bottom.
This phenomenon is the same for 2x2,8x8.
Dithering is not generated properly in full screen mode.
The last image is a phenomenon caused when stored in Fullscreenmode.
If you fix the strange vertical stripes again, I think I can use it without any problems!
%%NOTE:All of this was tested with the v157 hotfix.