Alternate possession clarification

Rule 6-4-5 states " the opportunity to make an alternating possession throw-in is lost if the throw-in team violates."

thus, if during the throw-in by team A, player A1 runs out of bounds off of a screen set by A2, does the violation result in the throw-in by B2 at the spot of the violation with the arrow pointed in B's direction and switched to A once the throw-in ends? Or does the arrow simply go over to B without it switching once the throw-in ends?