I don’t know what LEGO has been doing lately. This instructions "malfunction" stuff was really bad like 2 years ago, and it seems to have gotten better, but the instructions for 76391 totally skips two pieces, at least, sort of. At the end of bag 21, I had several of the correct extra pieces left over, but also two 2x1 wedge plates. So, I looked over all of the steps, and the instructions only call out two, which I had used, but still had two left. After looking three times, I finally found where they belong, and the instructions show them on the model, but does not show or call out adding them. At the beginning of bag 21, page 371 of the instructions, step 13 of the chocolate frog, the instructions only show adding one square brick, but in the picture, you are also adding the two wedge plates. I checked the web site, and this mistake is corrected in the digital instructions. I know it isn’t a big deal, but I really feel like this kind of thing shouldn’t happen. It is like typos in a book, several people are paid to make sure that doesn’t happen. Anyway, just letting everyone know.