OK, after some more tinkering I got it to list my products if I include the code for each shop section individually.
[etsy-include=EmDashDesigns;12556625,12563810,12611630,12639306,12676302,12673153]
But is there a way to include all of my items without listing each shop section? If so, then I won’t have to include a new number each time I add a new shop section.