c

downloader.py

@@ -193,9 +193,11 @@ for i, target_url in tqdm(enumerate(url_list), total=len(url_list), position=0,
 
     # Remove already downloaded files from the to-do list.
     download_queue = []
+    s = set()
     for p, video in enumerate(playlist['entries']):
-        if video['id'] not in downloaded_videos:
+        if video['id'] not in downloaded_videos or video['id'] not in s:
             download_queue.append(video)
+            s.add(video['id'])
     playlist_bar.update(len(downloaded_videos))
 
     if len(download_queue):  # Don't mess with multiprocessing if all videos are already downloaded