Do you know, that… ?

When creating a linear pattern, you can choose the same direction, but the opposite turn. Then it is a good practice to select the option Source element only. As long as the option is recommended for pattern with addition, the option is necessary in the case of a cutout. If you don't select it, the second direction duplicates the notch from the first direction, and an error occurs.

selection Source element only it also changes the pattern layout for perpendicular directions. Example below.