I find this happens often with my lifelist.
To correct I have found that when in your lifelist you need to go to the stat area on the right side of the screen, under: “Observed: yes,no,any” select no and run the filter.
This seems to give you all the species that are not being picked up by your lifelist.
I get species I have observed yet the system doesn’t recognize for whatever reason.
Once you run the filter you will see the species that need refreshing. You will probably notice they are species you have observed but your own photo’s are not displayed with them.
Next go into “edit” for each picture\observation
Once in the edit mode you will see refresh under the picture. After selecting refresh it should update the observation and replace with your own photo and add to your lifelist.
You will need to do this individually with each observation the system didn’t recognize as your own.
Hopefully you can follow my method and it works for you.