iCloud and iCloud3 v3 missing family member

Hello! With Life360 no longer working, I have decided to try and use either/both iCloud and iCloud3 v3 for location tracking. I was able to get both set up, however they are both missing one of my children. I have made sure that his phone is on when I reload both integrations. He is part of my family, and I can see his location in the “Find My” app. Any ideas on what I need to fix?