Buy shipping labels

Yesterday I tried to print the labels on buy shipping only to find that the option for 5x3 default was missing, I clicked 4 x 6 (which is the actual size of the label but when it printed the Letter labels were off the page, the large letters were fine. I have since seen then found a work around, it would be to select each type of post, it allows me to select the 5x3 default then change the printer orientation to landscape or portrait and then the label does print, its a bit small but it does work.
The letters that didnt print has to have to postage refunded and then applied again as the zip file didnt even have the label in it, only a partial label.
So my question is has anyone else had the same problem and did they find a solution without all the faff of having to only print letters, change settings then print large letters and change settings back ?
Thanks