Strangely the Earth view countdown is out of whack. I saw it at a pretty random part of the countdown for a short bit. But by the time the countdown hit 0 and reset to another 1/2 hour countdown, Earth was not visible.

Now, it might just be because Orion had come around far enough that the Earth was entirely showing its night side, and the count reset was when the non-visible Earth was no longer (invisibly) in the frame.