What the hell????
I waste hours since the SR2 was not in the aligned state.
Actually, when I came here today, the IFO was totally misaligned and the only xarm was aligned.
I know that daytime workers (especially Yokozawa-san) worked hard, and tried to recover the IFO, but even though, the situation is terrible. For instance, you can bring all suspension back when the IFO was locked by looking at the oplev signal. I did it and almost the IFO alignment got back.