2011, Aug. 13 - Joseph Agbeko vs. Abner Mares (1st meeting) for the WBC Silver and IBF Bantamweight Titles. Ross was the only judge not scoring Mares as the winner, instead seeing that bout as a draw. Scores: Adalaide Byrd 111-115, C.J. Ross 113-113, Oren Shellenberger 111-115.
The problem is the commissions select the judges and there doesn't appear to be any clear cut process by which judges are selected for the fights.
Adalaide Byrd has made some controversial decisions as well. Off the top of my head she gave Melvin Guillard the decision win against Jamie Varner in a UFC fight that was pretty one sided.
All I can say is if you don't finish the fight you're playing roulette.