As per many previous posts like below one, I have noticed this issue lately were Agent “The Movie Database” fails to pull the content rating for movies.
It works for Agent “Plex Movie” however this is never good at pulling all other content.
Same issue called out in below post here where it was said to be fixed and to clear HTTP cache but ive tried this and still doesnt work.
I have 839 movies missing this content rating as new as 2020 and as old as 1932
If no rating is added then movies wont show for my daughters profile.
Naming of files can be critical and have found over the years to get a good result you must match the name exactly as it appears at IMDb or TMDB. So depending on your settings you need to check.
Have your agents set up correctly is also very important.