It is very common for dapple dogs to have dappling occur in one or both eyes. This should not be a problem for her.
She sounds very cute.
I am a little concerned that your breeder did not know that your pup was a longhair or that the pup was dapple until just now. Dapple does not "come down through the genes". One of the parents has to be a dapple to produce dapple pups. Have you seen pictures of both parents? Is one of them a dapple? I have noticed this happening more and more lately because with some of these light coated dogs, the dappling is going unnoticed.
I would love to see pictures of her!