Apple ID Photo Issues

Hello! I am having some issues with my apple ID photo. I changed my photo and it shows up everywhere, including my iPhone, EXCEPT my lock screen when I have to log onto my Mac. Am I missing something obvious? If I change my photo shouldn't that one also change? It does save properly as if I change it on my phone it shows up in the setting of my mac and vice-versa. Anyone know know how to get the lock screen ID photo to change? Thanks!