there're times when I add cover pics manually I have to struggle to figure out why it won't take the cover. Wonder if anyone has ever encountered the same problem.
Wrong file format? Maybe there are already imported pics? if so: at least when you add a pic from the clipboard for a movie that doesn't already have one the filename is different. On importing "movie-id - movie title" and from clipboard you have a title containing date/time.
In order to achieve what is possible, you have to try the impossible over and over again. Hermann Hesse