Mouse Cursor not changing until moved

Development Programming & Scripting
11

auto& App = FSlateApplication::Get();
FVector2D CursorPos = App.GetCursorPos();
App.SetCursorPos(CursorPos + FVector2D(0, 1));
App.OnMouseMove();
App.SetCursorPos(CursorPos);
App.OnMouseMove();

Great work in 4.11.2. Thanks a lot!