I just ran a print of the Shoji Votive Candle design on medium draft board and came across some oddities (incomplete print; the camera does not match where the print actually happened).
there is a square with a circle cutout. the square was not completed (see image)
misalignment between where it told me it was going to print vs where it wound up printing. This happened a few times (this board is the only material I’ve tried printing on so far so you can see how one rectangle wound up amusingly close to another item (each block was a distinct print on my part of various items in the catalog).