Good little question to test the brain this morning

[jdw3018]

Yep, B42 became a player when he was beckoned onto the court. B32 left and was bench personnel. B42 then had to leave the game.

At this point, the officials should have required a different sub for B42 rather than allowing B32 to come on the court.

Even after that mistake, the second mistake was allowing B42 into the game after the next free throw, as he also had gone from player to bench personnel before time had elapsed.