Printing one invoice at a time is fine, but when I do more than one, the top invoice is fine but all the rest go a bit haywire. There is the buyer address and my shop's details at the top (one on left, one on right) then a line then the order text begins. On the haywire ones the line and order text comes up to the top of the page between the customer address and shop details (not over the top, just in the center for a few lines before going full width after the addresses/details).
As it's working one at a time I'm a bit confused about why it's not working on a bulk print!! Any help on where to start looking is appreciated!