For the benefit of others reading, the issue above with the shingles being cut is likely due to the fact that the UI will default to cut when material has been selected, so you need to look at the settings for the different components (in this case, the shingle detail, and the outline of the roof) and choose appropriate settings for each.
There’s no way to specify engrave, score, or cut in a source design file.
@pauline.lally you saved Christmas!
I made your design for my 3 year old on Christmas eve and our power went out all day (12 hrs) on Christmas and this was such a hit!!!
12 hours with no power on any day would be a challenge. On Christmas, even more of a hardship. Your tiny house will always be remembered as the gift that played well with no electricity. Well done.