I suddenly developed the same problem. I have turned off reading layout (by
unchecking Allow Starting in Reading Layout in the Tools > Options >
General), but when I select View > Print Layout what really appears is the
Reading Layout, which I don't want. I cannot get back to my normal Print
Layout.
I'm not sure how this change occurred, but I was working with creating forms
(using form tools) when I noticed that I had lost my Print Layout view.
View > Normal is also not quite "normal" - the view shows a wider layout
than my margin settings, at 100% magnification. I had seen this once before