Travel

[Scrapper1]

When starting a dribble, the ball must be released from the hand before the pivot foot is lifted.

And, in fact, I believe this is the only play in which it's a travel to lift the pivot foot. In all other cases, it's not a violation until the pivot returns to the floor. (I think. . .)

Well, there are other traveling violations that don't depend on moving the pivot foot (e.g., attempting to get up from the floor). But hopefully, you get what I mean.