Help printing postcards in landscape

Is there any setup suggestion to get a 5.9" x 4.0" postcard to print when fed into the printer landscape orientation?
I am able to print a 8.5x11 sheet in landscape mode but when I change Page Style : Paper Format to Width=5.9",Height=4.00", Orientation=Landscape, Libreoffice keeps changing the print orientation to portrait regardless of the Print orientation.

So far, what I’ve had to do to get it to work is to set Printer Properties to Custom Paper size of Width=4.00, Height=5.9. Otherwise LibreOffice will print in Portrait mode. Bizarre.

I notice a marked difference in the way my HP printer handles it, without problem, and the way the Brother printer handles it, with difficulty.

My Brother printer driver has a minimum height of 127 mm (5 inches). Even if the paper is rotated to achieve that it won’t accept it, it has to be defined as width 100 mm (4 inches) and height 148 mm (5.9 inches). It is then 90 degrees out to that specified in LibreOffice causing the issue.
MinimumHeightBrotherPrinter