An LH2 sensor wasn't responding, so, the launch has been scrubbed. I guess they'll have to detank. Ah well, interesting to see that there isn't going to be just a pile of pink paper.
What a letdown. Can you imagine what the crew feels like now? Uuuuuuuuhhhh. Adrenaline overload. Failure mode uhhhhhhh.
So, how long will this turnaround take?