Unable to play artist radio (Computed 0 candidate tracks)

Server Version#: 1.32.8.7639 (docker on linux)
Player Version#: web, and plex-desktop v1.83.1 (via snap, ubuntu)

I’m unable to play artist radios from either client mentioned above. In the logs, it mentions finding artists, but unable to match any songs. The client gets a message of “Playback error: An error occurred loading items to play.”

My library is set to scan nightly, and I don’t see any other errors. I can play music by selecting tracks, albums, or clicking “play” under the artist without issue.

Example server logs from clicking the radio button:

Dec 13, 2023 18:55:16.212 [140062949452600] Debug — [Req#63ab5e] PlayQueue: 0 generated IDs compressed down to a 20 byte blob.
Dec 13, 2023 18:55:16.214 [140062949452600] Debug — [Req#63ab5e/Music] Closest item from 37988 was a distance of 0.155 away.
Dec 13, 2023 18:55:16.215 [140062949452600] Debug — [Req#63ab5e/Music] Furthest item from 37988 was a distance of 0.241 away.
Dec 13, 2023 18:55:16.215 [140062949452600] Debug — [Req#63ab5e] Radio: Found 5 sonically similar artists for 'CAKE' at 2 separation degree(s).
Dec 13, 2023 18:55:16.266 [140062949452600] Debug — [Req#63ab5e] Radio: Found 20 similar artists for 'CAKE' at 2 separation degree(s).
Dec 13, 2023 18:55:16.275 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Fastball'.
Dec 13, 2023 18:55:16.275 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Fastball.
Dec 13, 2023 18:55:16.275 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Incubus'.
Dec 13, 2023 18:55:16.276 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Incubus.
Dec 13, 2023 18:55:16.276 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Smash Mouth'.
Dec 13, 2023 18:55:16.276 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Smash Mouth.
Dec 13, 2023 18:55:16.276 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'The Specials'.
Dec 13, 2023 18:55:16.277 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for The Specials.
Dec 13, 2023 18:55:16.277 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Everclear'.
Dec 13, 2023 18:55:16.277 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Everclear.
Dec 13, 2023 18:55:16.277 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Toadies'.
Dec 13, 2023 18:55:16.278 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Toadies.
Dec 13, 2023 18:55:16.278 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist '311'.
Dec 13, 2023 18:55:16.278 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for 311.
Dec 13, 2023 18:55:16.278 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Harvey Danger'.
Dec 13, 2023 18:55:16.279 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Harvey Danger.
Dec 13, 2023 18:55:16.279 [140062949452600] Debug — [Req#63ab5e] Radio: Stepped the radio generator for artist 'Beck' in 65 ms.
Dec 13, 2023 18:55:16.280 [140062949452600] Debug — [Req#63ab5e/Music] Closest item from 44009 was a distance of 0.174 away.
Dec 13, 2023 18:55:16.280 [140062949452600] Debug — [Req#63ab5e/Music] Furthest item from 44009 was a distance of 0.237 away.
Dec 13, 2023 18:55:16.280 [140062949452600] Debug — [Req#63ab5e] Radio: Found 4 sonically similar artists for 'The White Stripes' at 2 separation degree(s).
Dec 13, 2023 18:55:16.313 [140062949452600] Debug — [Req#63ab5e] Radio: Found 19 similar artists for 'The White Stripes' at 2 separation degree(s).
Dec 13, 2023 18:55:16.318 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Jet'.
Dec 13, 2023 18:55:16.318 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Jet.
Dec 13, 2023 18:55:16.318 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'The Strokes'.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for The Strokes.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Foo Fighters'.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Foo Fighters.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Queens of the Stone Age'.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Queens of the Stone Age.
Dec 13, 2023 18:55:16.319 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Royal Blood'.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Royal Blood.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'The Vines'.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for The Vines.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Blue October'.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Blue October.
Dec 13, 2023 18:55:16.320 [140062949452600] Debug — [Req#63ab5e] Radio: Stepped the radio generator for artist 'Beck' in 41 ms.
Dec 13, 2023 18:55:16.321 [140062949452600] Debug — [Req#63ab5e/Music] Closest item from 44706 was a distance of 0.205 away.
Dec 13, 2023 18:55:16.321 [140062949452600] Debug — [Req#63ab5e/Music] Furthest item from 44706 was a distance of 0.264 away.
Dec 13, 2023 18:55:16.321 [140062949452600] Debug — [Req#63ab5e] Radio: Found 0 sonically similar artists for 'Ween' at 2 separation degree(s).
Dec 13, 2023 18:55:16.346 [140062949452600] Debug — [Req#63ab5e] Radio: Found 14 similar artists for 'Ween' at 2 separation degree(s).
Dec 13, 2023 18:55:16.349 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'King Missile'.
Dec 13, 2023 18:55:16.350 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for King Missile.
Dec 13, 2023 18:55:16.350 [140062949452600] Debug — [Req#63ab5e] Radio: Stepped the radio generator for artist 'Beck' in 29 ms.
Dec 13, 2023 18:55:16.350 [140062949452600] Debug — [Req#63ab5e/Music] Closest item from 55493 was a distance of 0.151 away.
Dec 13, 2023 18:55:16.351 [140062949452600] Debug — [Req#63ab5e/Music] Furthest item from 55493 was a distance of 0.237 away.
Dec 13, 2023 18:55:16.351 [140062949452600] Debug — [Req#63ab5e] Radio: Found 9 sonically similar artists for 'Blur' at 2 separation degree(s).
Dec 13, 2023 18:55:16.371 [140062949452600] Debug — [Req#63ab5e] Radio: Found 7 similar artists for 'Blur' at 2 separation degree(s).
Dec 13, 2023 18:55:16.374 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Fear of Pop'.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Fear of Pop.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'The Libertines'.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for The Libertines.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Gorillaz'.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Gorillaz.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'Beady Eye'.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for Beady Eye.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'ORB'.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for ORB.
Dec 13, 2023 18:55:16.375 [140062949452600] Debug — [Req#63ab5e] Radio: Stepped the radio generator for artist 'Beck' in 25 ms.
Dec 13, 2023 18:55:16.376 [140062949452600] Debug — [Req#63ab5e/Music] Closest item from 64167 was a distance of 0.130 away.
Dec 13, 2023 18:55:16.376 [140062949452600] Debug — [Req#63ab5e/Music] Furthest item from 64167 was a distance of 0.226 away.
Dec 13, 2023 18:55:16.376 [140062949452600] Debug — [Req#63ab5e] Radio: Found 12 sonically similar artists for 'Menomena' at 2 separation degree(s).
Dec 13, 2023 18:55:16.391 [140062949452600] Debug — [Req#63ab5e] Radio: Found 6 similar artists for 'Menomena' at 2 separation degree(s).
Dec 13, 2023 18:55:16.394 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'John Vanderslice'.
Dec 13, 2023 18:55:16.394 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for John Vanderslice.
Dec 13, 2023 18:55:16.394 [140062949452600] Debug — [Req#63ab5e] Radio: Adding similar artist 'The Octopus Project'.
Dec 13, 2023 18:55:16.395 [140062949452600] Debug — [Req#63ab5e] Radio: Computed 0 candidate tracks for The Octopus Project.
Dec 13, 2023 18:55:16.395 [140062949452600] Debug — [Req#63ab5e] Radio: Stepped the radio generator for artist 'Beck' in 19 ms.
Dec 13, 2023 18:55:16.395 [140062949452600] Debug — [Req#63ab5e] PlayQueue: Start index: 0 End index: -1 Count: 0
Dec 13, 2023 18:55:16.395 [140062949452600] Debug — [Req#63ab5e] PlayQueue: 0 generated IDs compressed down to a 20 byte blob.
Dec 13, 2023 18:55:16.396 [140063419665208] Debug — Completed: [192.168.128.52:39902] 200 POST /playQueues

Let me know if there’s any other logs or tests I can do to help provide information. I didn’t see any previous posts with this same set of errors, but let me know if I missed one.

Thanks!

Did you switch off the download of “popular tracks” data in your music library? If you did, this is the collateral damage from it.

I don’t remember doing so, but yes, that setting was disabled. After enabling the setting and telling it to force a metadata refresh, things are working as expected. Thank you!

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