I found this photo of a NFE fork crack, via a Reddit thread - Reddit - Dive into anything
“Yeah, they stopped offering the lugged biplane fork after a few started failing near the top of the disc tab and the mid-mount rack eyelet. So sad :(.”
This is an example of what @bushtrucker said previously – that the Willits style tab can create a stress riser “further up the blade where the tab ends”.