I had a question open that had zero answers. While it was open, two people answered it. The familiar popup of "2 new answers to this question" appeared, I clicked it, and:
- The sorting box (active - oldest - votes) did not appear
- The answers were not sorted by any immediately obvious order.
Obviously, this is a pretty rare bug (multiple answers, answers must get votes, all while the page is sitting open?) that fixes itself by a simple page reload, but I thought I should mention it here. This occurred in Chrome Version 41.0.2272.118 m.