Auction House UI bugs

If I filter by "preferred stats" in any category of items, I get no results at all even if I know that at least some relevant items exist by looking through the unfiltered list of items.

When I click the column titles in the AH listings, an arrow appears next to it as if to indicate sorting by ascending and descending order, but it doesn't actually arrange the columns in order by price, dps, time left, etc.

A text search feature would also be useful.