The regular season champion UTEP with an RPI of 37 and 2nd (tied with MTSU) place team WKU with a RPI of 38 both did not get bids to the NCAA tournament.
http://www.ncaa.com/rankings/basketball-women/d1/ncaa-womens-basketball-rpi
http://www.ncaa.com/rankings/basketball-women/d1/ncaa-womens-basketball-rpi