in movies with no ratings if you click on the (i) there are no links for imdb, rottentomatoes, tmdb etc.
The ratings have nothing to do with the lihnks, the links should be there
While on another movie with ratings:
links are there on the icons
its not a direct fix but the links to IMDb and TMDB at least can be found on the Information icon for the movie that you linked
it somewhat makes sense that the links are not showing in the ratings section because there are no ratings available for the movie, although it can make discovering the links harder in general