With that one female, it wouldn't have mattered what you did. I had never had a puppy I couldn't fix that issue in before or after (even her kids, grandkids and great grand kids). That is always why I felt that it was a created behavior do to all of the pups still fighting in the group for their meals at 9.5 weeks.
I just prefer to feed the dogs in their crates. They are more relaxed, no one bothering them or another dog staring at them, no pressure.
Lisa Clark Zu Treuen Händen SG1 Deja IPO3 AWD1 KKL1 B/HOT, SG Elena IPO1 KKL CGC B/HOT, LB IPO2 KKL B/HOT (the ugly little sable), Donovan IPO1 TR2 AD and gone, but not forgotten: Vala SchH3 AWD1 FH2 CGC B/HOT, Nike SchH1 OB1 TR3 AD HOT, Treue SchH3 CD CGC HOT