Samoyed ears not standing up after 7 months

Hello, we have a samoyed puppy we got 4 months ago when she was 3 months old, we’ve never noticed it and aethetic-wise we don’t really mind in particular, but does it cause any harm? What might be the reason as to why the ears don’t stand up? We do have the document and she does look like a purebred, will update the photo soon. Thanks!