Favoring one breast

Lhand11

DS doesn't like lefty for some reason. He gets a good latch and pulls off, I put him back on and he pulls off, again and again. He eats from righty like a champ. It's not like he isn't getting enough milk because when he pulls off it drips all over the place. Also when  he does this, I pump it and I can get 2oz. Anyone else? What did you do?