Can anyone explaine what happens here? It take 20 minuten to update YAMJ for 1 movie. Here is a part of my logfile. Look at the times. After scanning all my movies it sits and waits 20 minutes

Zootopia is my last movie on my Mede8er drive, the last to scan, The Mule is the newest:
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[19:55:58 - Thread-1] ArtworkScanner: Zootopia 2016 Zootropolis 1080p NL Audio Subs movieart not required
[19:55:58 - Thread-1] ArtworkScanner: Zootopia 2016 Zootropolis 1080p NL Audio Subs moviedisc not required
[19:55:58 - Thread-1] ArtworkScanner: Zootopia 2016 Zootropolis 1080p NL Audio Subs movielogo not required
[19:55:58 - Thread-1] MovieJukebox$3: Finished: Zootopia 2016 Zootropolis (391/391)
[20:15:29 - Thread-3] PosterScanner: Searching online for The Mule 2018 1080p BluRay x264
[20:15:29 - Thread-3] PosterScanner: Using themoviedb to search for a Movie poster for The Mule
[20:15:29 - Thread-3] MovieDbPosterPlugin: Movie found on TheMovieDB.org:
http://www.themoviedb.org/movie/504172[20:15:30 - Thread-3] PosterScanner: Poster URL found at themoviedb:
http://image.tmdb.org/t/p/original/oeZh7yEz3PMnZLgBPhrafFHRbVz.jpg.
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Update: tried scanning my backup drive connected to my Synology: same result. 3 thread running, 10 download threads, nothing happens..