Backcourt rules citation please

[representing]

could've sworn I posted something, was it deleted?

Rule book says:

Rule 9-9 BACKCOURT
Article 3

A player from the team not in control (defensive player or during a jump ball or throw-in) may legally jump from his/her frontcourt, secure control of the ball with both feet off the floor and return to the floor with one or both feet in the backcourt. The player may make a normal landing and it makes no difference whether the first foot down is in the frontcourt or backcourt.

So no, there is no backcourt violation. No team control during throw-ins, and the rulebook said you may jump from FC to BC while catching the ball mid-air.