Free Throw Position question

[Fritz]

Another violation to watch for is backing out of their lane space. Had that in a GV game last night; B3 was in the space closest to shooter and right after A1 released the ball, B3 circled around everyone to get into rebounding position. Coach argued that she didn't enter the lane until after the ball hit the rim (which was true) but I explained that she left her space after the shooter had control of the ball and before it hit the rim/basket.