I had a similar experience. I’m not a computer programmer, but I took a computer programming class in high school. We had an assignment that I completed like normal. This was a long time ago, but if I remember correctly, it was something about making 3 separate programs, then making another program that all it did was run the 3 other programs in sequence. Apparently, I was the only one in the class that did it right and everyone else bombed it. All I did was follow instructions. I have no idea how anyone else didn’t complete the assignment correctly. Did they just add their own desires to it? Did they disagree with the instructions? How did they mess it up??