When you are in the Hero picking menu (such as when queueing up for Quick Match, if you sort by level Brightwing seems to be sorted incorrectly.
I have lvl 25 Brightwing and lvl 14 Lunara both favorited, but when I sort by Level + Favorited Brightwing appears after Lunara. All other heroes are ordered correctly by level/favorited, Brightwing being the only one appearing in the wrong slot of the selection menu.