Is the puppy getting time alone? Is she getting one on one time with you? Time for playing and training alone?
The problem is when your puppy spends most of it's time with your adult dogs, the puppy may bond with the dogs instead of you.
Try to spend time alone with your puppy.
As far as learning from your dogs? For sure they do.
They can be a good influence, or they can also teach her bad things too.
Gina