People selection in Photo Shuffle for Lock Screen

On my iPhone 14 pro with version iOS 16.5.1, when I go to change the Lock Screen I only see a limited number of people to select. In Photo library, I have 6 people identified and multiple pictures for each one. When I go to add a new Lock Screen and select people I only see the option for 3 of those 6. Originally I had 10, I removed 4 thinking there was some sort of limit but this did not add any of the ‘missing’ people to the People selection in the photo shuffle option… any solutions for this?