Where did this topline on back come from? Given pedigree. My girl. - Page 1

I am a bit mystified. Pup link below was born in my hads, I made her Momma. I witnessed te tie, I dna'd. I know the stud owner will be a judge at one of her events next week. Given this pedigree litter of 10 all are sold, trully a question. A show dog showed up. We always stud but I know stud owner. I own her and mmystified. Tomorrow got to training with the owner of grandfather's . saying know every thing I would ever possibly tink but litter showed up with a venencance and I always stud. Curious as to you experience in such a matter. All are since sold but will stud again, and was curious where did that show up at? https://www.pedigreedatabase.com/german_shepherd_dog/dog.html?id=3134777-medusas-vendetta-of-cerberus?_v=20220609085353

It is a normal looking GSD topline to me. They look like that.

Pup needs to be stretched out a bit more. At that angle, she's hunched under herself.

Better picture would help, from a side view