large playlist problem

[unosonic]

currently upgrading from 1.4.4 to 2.3.3, all fine, BUT: I have a playlist of about 40-45k local files, which are loaded like:
playlist = playlist(id='myid', 'myplaylist.txt')
the playlist contains lines with the annotate protocol. so nothing special here, I'm using this list more or less since many years w/o problems. Problem now is that liquidsoap 2.3.3 doesn't start up but rather eats up all available memory, while reading the playlist (I guess). On the other hand, 1.4.4 loads the same list easily without complaints:

2025/07/03 17:16:32 >>> LOG START
2025/07/03 17:16:32 [main:3] Liquidsoap 1.4.4
2025/07/03 17:16:32 [apo(dot)m3u:3] Loading playlist...
2025/07/03 17:16:33 [apo(dot)m3u:3] No mime type specified, trying autodetection.
2025/07/03 17:17:00 [apo(dot)m3u:3] Playlist treated as format application/x-mpegURL
2025/07/03 17:17:00 [apo(dot)m3u:3] Successfully loaded a playlist of 42640 tracks.

any ideas on this?
thx, u.

[unosonic]

just testing: there seems to be a limit of about 20k of lines in the playlist file. playlist file size is about 7MB.

[unosonic]

it actually seems that the number of lines in a playlist is NOT the problem. Just tested with 50k identical annotate-lines. So the question now is how to identify the troublesome lines...

[unosonic]

specifying the mime type of the playlist file fixes the problem:
playlist = playlist(id=playlist_id, mime_type="audio/x-mpegurl", playlist_file)
however, it looks like a bug to me when a long (syntactically correct) playlist using the annotate-protocol prevents liquidsoap from loading and is consuming all memory.