Artists missing for a certain song when using get_watch_playlist()

[RaduTek]

After running a playlist through some code I've made, I've found that a certain song does not return any artists.
The song in question is: https://music.youtube.com/watch?v=_GUaqxHWLks.
This issue happens outside of my code.

After running result = ytm.get_watch_playlist("_GUaqxHWLks") and outputting as JSON print(json.dumps(result, indent=2)) I get this: (trimmed unnecessary parts)

  "tracks": [
    {
      "videoId": "_GUaqxHWLks",
      "title": "Human Rights",
      "length": "6:04",
      "thumbnail": [...],
      "feedbackTokens": null,
      "likeStatus": null,
      "videoType": "MUSIC_VIDEO_TYPE_ATV",
      "artists": [],
      "views": "61",
      "album": {
        "name": "Vocal Trance Club Hits Vol. 4",
        "id": "MPREb_YBKrMP6OhRV"
      },
      "year": "2008"
    },
    ...
  ]
}

Notice how "artists": [] is empty. Meanwhile in YT Music, on the watch page the artist is displayed successfully, so it shouldn't be a backend issue or missing metadata on YT's side.

[RaduTek]

To make it clear, all the code I've used to recreate the issue is:

import json
from ytmusicapi import YTMusic
ytm = YTMusic()
result = ytm.get_watch_playlist("_GUaqxHWLks")
print(json.dumps(result, indent=2))

[sigma67]

If you look at your screenshot, the data is not there on the YouTube Music frontend. It only shows the album. That's why there is no artist in the data.

[RaduTek]

I'm sorry, but there is. The album name is "Vocal Trance Club Hits Vol. 4", while the artist is "61 Rus". The thing is that the artist is not matched with an ID, as it's not clickable, but it is displayed both there and on the album page.

[sigma67]

Ah I see. This is a special case where the artist matches the regex used to detect view counts, and therefore a bug.