Question on lane violation

[Damian]

Had a sitch last night in a game with playoff potential. GV UIL assignment.

Team A is about to shoot first of 2 freethrows. Just as she gets the ball at her disposal for the first toss, a member of Team B steps into a lane space (not the lane). Then, before she shoots, a member of Team A steps into another lane space.

Neither violation was caused by the other. These were girls entering the designated spot. Now, if this had been the second free throw, it would have been AP. But, this was the first one, so what should we have done?