youtube-playlist extractor with (many) missing video entries

[tgerder]

youtube-dl --get-filename --playlist-start 43 --max-downloads 5 --prefer-ffmpeg -o "%(playlist_title)s %(playlist_index)s, %(title)s" "https://www.youtube.com/playlist?list=PLAwxTw4SYaPkdANSntXhY0btWkpPglDGD"
resulting in

Knowledge Based Artificial Intelligence Part 1of 5 043, Final Quiz - Georgia Tech - KBAI - Part 3
Knowledge Based Artificial Intelligence Part 1of 5 044, Preview - Georgia Tech - KBAI - Part1
Knowledge Based Artificial Intelligence Part 1of 5 045, Representations - Georgia Tech - KBAI - Part1
Knowledge Based Artificial Intelligence Part 1of 5 046, Introduction to Semantic Networks - Georgia Tech - KBAI - Part1
Knowledge Based Artificial Intelligence Part 1of 5 047, Exercise - Constructing Semantic Nets I Quiz - Georgia Tech - KBAI - Part1

in total the parser extracts just 154/172 videos

[kn00tcn]

is it skipping duplicate titles? that what it seems like after manually looking at the generated list & the YT page