jump stop...travelling call???

[Judtech]

I don't know about newer officials but I know there were plenty of officials scratching their heads at the NCAA preseason meetings.
To me the key take away point is when the pivot foot is established. If you get that, it makes the play somewhat easier. It is a tough move to describe, it is a sort of "have to see it" play.
As a federal judge and a congressman were famously quoted "I can't tell you what it is, but I know it when I see it" (paraphrased, sorry Mr Flint)