[BUG] slskd indexer disabled after repeated "Sequence contains no elements"

[blungooo]

Tubifarry Version

1.8.0

Lidarr Version

2.11.1.4613

Operating System

Windows

Bug Description

Slskd as indexer is repeatedly being disabled due to "An error occurred while processing feed. : Sequence contains no elements"

In my event log I see tons of these:

10:56am SlskdIndexer An error occurred while processing feed. : Sequence contains no elements

System.InvalidOperationException: Sequence contains no elements
at System.Linq.ThrowHelper.ThrowNoElementsException()
at System.Linq.Enumerable.Min[TSource](IEnumerable1 source, Func2 selector)
at Tubifarry.Indexers.Soulseek.SlskdRequestGenerator.GetSearchRequests(AlbumSearchCriteria searchCriteria)
at NzbDrone.Core.Indexers.HttpIndexerBase1.FetchReleases(Func2 pageableRequestChainSelector, Boolean isRecent) in ./Lidarr.Core/Indexers/HttpIndexerBase.cs:line 89

They also show under lidarr -> events as errors with the bug icons.

Steps to Reproduce

I have multiple wanted albums. When I hit search all, i quickly get flooded with multiple errors that have "sequence contains no elements" and slskd indexer gets disabled

I believe, but am not sure, that this happens under the following circumstances: if an album was added via RSS from another indexer but is not available on musicbrainz, I think it's passing insufficient info to the searcher and it throws an error and disables itself

The albums in question doesn't have a release date listed (it's new) and therefor has no release date etc listed

Expected Behavior

See above

Log Files

Logs

2025-05-20 11:14:08.7|Debug|Api|[GET] /api/v1/trackFile?artistId=144: 200.OK (211 ms)
2025-05-20 11:14:10.2|Trace|Scheduler|Pending Tasks: 0
2025-05-20 11:14:12.1|Trace|Http|Req: 16759 [GET] /api/v1/release?albumId=15990 (from 10.0.0.241 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36)
2025-05-20 11:14:12.1|Debug|Lidarr.Http.Authentication.ApiKeyAuthenticationHandler|AuthenticationScheme: API was successfully authenticated.
2025-05-20 11:14:12.1|Info|ReleaseSearchService|Searching indexers for [VNV Nation - Construct (0)]. 1 active indexers
2025-05-20 11:14:12.1|Trace|SlskdRequestGenerator|Generating search requests for album: Construct by artist: VNV Nation
2025-05-20 11:14:12.1|Trace|EventAggregator|Publishing ProviderStatusChangedEvent<IIndexer>
2025-05-20 11:14:12.1|Error|SlskdIndexer|An error occurred while processing feed. 

[v2.11.1.4613] System.InvalidOperationException: Sequence contains no elements
  at System.Linq.ThrowHelper.ThrowNoElementsException()
  at System.Linq.Enumerable.Min[TSource](IEnumerable`1 source, Func`2 selector)
  at Tubifarry.Indexers.Soulseek.SlskdRequestGenerator.GetSearchRequests(AlbumSearchCriteria searchCriteria)
  at NzbDrone.Core.Indexers.HttpIndexerBase`1.FetchReleases(Func`2 pageableRequestChainSelector, Boolean isRecent) in ./Lidarr.Core/Indexers/HttpIndexerBase.cs:line 89


2025-05-20 11:14:12.1|Debug|ReleaseSearchService|Total of 0 reports were found for [VNV Nation - Construct (0)] from 1 indexers
2025-05-20 11:14:12.1|Debug|ReleaseSearchService|Setting last search time to: 5/20/2025 4:14:12 PM
2025-05-20 11:14:12.1|Info|DownloadDecisionMaker|No results found
2025-05-20 11:14:12.1|Trace|Http|Res: 16759 [GET] /api/v1/release?albumId=15990: 200.OK (38 ms)
2025-05-20 11:14:12.1|Debug|Api|[GET] /api/v1/release?albumId=15990: 200.OK (38 ms)

Screenshots

Screenshots

[TypNull]

Hi, thank you for your report.

I've encountered a challenge—I wasn’t able to replicate the issue. When I searched for the album you mentioned, Lidarr returned the error: "Album duration is 0, unable to validate size until it is available." However, I didn’t find anything specifically related to Slskd as an indexer.

It’s possible that this error occurs when MusicBrainz Releases don’t yet contain any tracks. I tested on version 1.8.0 and above but couldn’t reproduce the problem. That said, I believe I’ve identified the cause and will attempt to fix it in v1.8.0.4, though I can't guarantee the resolution just yet.

Thanks again for reporting!