I noticed the count of reviews behaving a little strangely. This morning I had 124 reviews, but the counter did not have [ #correctanswers (or is it items answered?)/total items]. The second number was always the number of items I’d answered + 1 and kept incrementing as I went. The second number didn’t change to 124 until I’d answered 123 items.
It behaves the same way in the cramming section, so it is hard to tell how many you have left. (Also in the cram section it just keeps going until you click “wrap up session”, which I think it’s supposed to do.)