My dad's contact/iCloud photo keeps changing to mine, no matter what. Family sharing is enabled. It also lists his name under family sharing settings instead of mine.

My dad and I have family sharing enabled and I noticed that under iCloud settings and my contacts, he has the same photo every time I change mine. I've changed his picture to his proper one, but it still just changes back to my own. It also shows that I am my dad when I look under family settings. It also shows that his contact card is one of my contact cards. My dad's name is Glenn, my name is Isaiah. This gets really annoying.