[niconico:playlist] Extracting URL: https://www.nicovideo.jp/user/19266494/mylist/32371208?sortKey=registeredAt&sortOrder=desc
[niconico:playlist] 32371208: Downloading list
[download] Downloading playlist: 間違いだらけ
[niconico:playlist] 32371208: Downloading page 1
[niconico:playlist] Playlist 間違いだらけ: Downloading 47 items of 47
[download] sm21657027: 間違いだらけのクトゥルフ神話TRPG Part.39 最終話 has already been recorded in the archive

個別マイリスト指定はDL出来る。

[generic] Extracting URL: https://www.nicovideo.jp/user/19266494/video?ref=pc_userpage_menu
[generic] video?ref=pc_userpage_menu: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] video?ref=pc_userpage_menu: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://www.nicovideo.jp/user/19266494/video?ref=pc_userpage_menu
Traceback (most recent call last):
File "yt_dlp\YoutubeDL.py", line 1593, in wrapper
File "yt_dlp\YoutubeDL.py", line 1728, in __extract_info
File "yt_dlp\extractor\common.py", line 732, in extract
File "yt_dlp\extractor\generic.py", line 2531, in _real_extract
yt_dlp.utils.UnsupportedError: Unsupported URL: https://www.nicovideo.jp/user/19266494/video?ref=pc_userpage_menu

動画・シリーズTOPだとDLしない。