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Interesting that nothing is said about why two scrubs occurred. SpaceX seems to have been forthcoming with details about anomalous flights in the past like Amos 6 and CRS-7, but I haven't found anything that gives an explanation for why the first two launch attempts didn't succeed.

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See https://www.youtube.com/watch?v=SPepP_1qr8g for an explanation for Monday's scrub. Fairly certain Monday's webcast had an explanation for the previous attempt as well.

They were forthcoming in both Sunday and Monday's webcasts of the failed launch. In both cases, it was a data anomoly 10s from launch

Which is to say at t-10 seconds when its pretty simple and routine to scrub, they do a massive comparison of sensor data and system status versus expected data and expected status. If that fails for any reason they scrub. It takes them a while to go through all of the data to figure out what data caused the scrub and then a while longer to figure out what caused the data to be "wrong".

My question though is what was that data anomaly? Also was it the same thing both times? Just curious really.

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