If you downloaded DisplayFusion 12.0 and are having issues with languages please re-download and re-install. We have repacked the release as 12.0c with the languages fixed.
Window Management: "Enable maximized window dragging between monitors."
After unchecking, I can still pick up and drag a maximized window across monitors. I actually only have one monitor (horizontal split). This is a problem because the top pixels seem to be reserved for the ability to pick up the window and I really need those pixels back