For the experts who know all the facts and details, can you please confirm that if UA has confirmed the crew is scheduled to board this flight from their scheduling system? It is definitely possible that:

1. Scheduling system confirms the crew seats in the previous flights, but crew was late/lazy and want to get on UA3411.

2. Scheduling system confirms the crew seats in the later flights, but crew was early and wanted to get on UA3411.

If crew members force themselves into this flight while the scheduling system didn't put them on UA3411, then that's another issue UA has to answer to DOT/Class-Action-Lawsuit. I am trying to figure out what the heck UA means by 'definitely overbooked on April 9' but 'not overbooked' two days later.