Could have been a Covid issue, those engines were built during Covid more than likely. So the assembly line gets an inexperienced assembler, because the experienced assembler that has the experience, is not there.
My pontoon was built during Covid, and I had to help in the assembly, because my Dealer was 250 miles away, warranty or not, I'm not driving a 500 mile round trip for minor things I could fix. A Swiss friend of mine was looking over the pontoon and called me over to look at the center hanger box on the drivers side suspension. The center bolt that holds the two leaf springs together was over half way out. If that bolt had come out while driving 65 MPH, I probably would have lost the pontoon and maybe even killed someone behind me. I had just picked it up at the Dealer over 250 miles away, and that was the maiden trip of the trailer.