I've been playing XL for a couple of weeks now, and something about it just feels off - like it's somehow much, much tougher to win than on dear old MS Solitaire. More dead-ends, more times when there are two or three necessary cards buried within a single stack but everything else matches up. It's just been so long since I played on Windows - maybe solitaire is less winnable than I remembered.
And every once in a while, when I near the end of a deal, flipping from the deck where there's only one left, that final card seems to transfer itself to the front of the next deal.
I notice it mostly because I'll have, say, a king in the third position of the first three cards from the deck. I'll move the first card to a stack, run through the deck, and when I get back to the top, the king remains in third position.