Lightburn settings framing issue

Ive set up the box shape to the piece of wood I will be working on to
H = 7.25 - W = 3.875
When I go to frame it it does the width (3.875") fine but it traverses the
height lots traveling a good 3" to 4" over the the height settings.
I tried changing the dimensions from portrait to landscape but it still
went passed its mark by inches.
Any thoughts