Hi Maxim,

I have "US Letter"  as paper size selected. though maybe i don't understand your question.

Its very strange, but each time i selected the "landscape" mode for printing (which as ive explained, was not working, and just kept producing "portrait" plots, both as prints and previews) the plot function would immediately switch back to "portrait" for the next print. Similarly, i would choose "center on page" and "scale line weights", but the next time i tried to plot, these boxes would  be unchecked.  

For no reason that i can understand, the plot function now seems to remember certain things like this. I don't know what has changed, but right now i can plot in landscape mode, AND the program seems to "remember" that this was what i last used, and leaves it selected. I have no idea what caused the change. I now seem to be able to go back and forth between portrait and landscape with no problem.

Im guessing this has something to do with my OS update to Mojave. the computer seems to be running strangely now in a number of ways, so I'm not that surprised.