Your experience reminds me of when I got my first jointer. I was excited about getting the new toy and wanted to do some test runs but I only had primed pine from some window trim work I had done. Ran that and immediately regretted it. There was some build up of primer on the edges of the board which left 2 distinctive nicks in the blades. Lesson learned quickly. Also learned that day how to flip the blades to the 2nd edge.