EntryTime = 2 can delay a trade by 0, 1, or 2 bars. After 2 bars the trade is cancelled. I have not examined the pending machanism in detail, so I can only make an educated guess here, but I suppose the 3 trades on bar 807 come from the current, the previous, and the previous-plus-one bar. At least that's what I normally would expect from my understanding of pending trades.

You can easily test this by setting EntryTime = 1 - you should then have only 2 trades on bar 807.