Get a Playlist's Items returns more items than expected

[alpdal]

Endpoint(s):

• https://api.spotify.com/v1/playlists/5QIuZOKmi3lqqehVhOSIxT/tracks?limit=100&fields=offset,next,total,limit,items(track(name,duration_ms,id,popularity))

Scope(s):

• user-read-private playlist-read-collaborative playlist-read-private

Steps to reproduce:

1. Open the API Console
2. Call the endpoint above
3. Compare the number of items with the actual track numbers of playlist (https://open.spotify.com/playlist/5QIuZOKmi3lqqehVhOSIxT?si=UlWLUkV2TdyTTbJDZ-fVzw)

Expected behaviour:

Playlist contains 65 tracks

Actual behaviour:

API endpoint returns 66 items.
Extra song is "Jealous man" - 18th item. It may be deleted song.

[alpdal]

It seems like API returns unavailable songs, however my app is configured to not display unavailable songs. It can be changed from display settings.