When printing checklists in Landscape, 4 column mode, there is a formatting bug on the first column of the first page: In columns 2-4 of the first page as well as all columns of the subsequent pages, the label 1 is printed in regular font and the label 2 is printed italics. But in the first column of the first page, both label 1 and 2 are printed in regular font, so it is not distinguishable where label 1 ends and label 2 starts.
As page 1 is usually the preflight inspection, this is really only a minor issue, but it can probably be fixed easily.