Our last 9X shot in combat? https://www.popularmechanics.com/military/aviation/news/a270...
https://www.thedrive.com/the-war-zone/14344/heres-the-defini...
To recap the article, missiles aren't perfect, especially when they've been flown on and off carrier decks. And this "miss" isn't even data; it's microscopic anectdata. In fact, I don't know of another combat launch of the 9x.