OK it happened last night. There is nothing showing in History -> Queue. In History is shows as sent to the download client but nothing more about it after that.
Below is the relevant portion of the log, it contains the original download and the Repack 20 minutes later. The downloaded repack is still in the folder that nzbget puts it in after the download is unpacked. The original download was moved to the recycle folder by nzbdrone.
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14-8-20 20:26:37.1|Info|Nzbget|Adding report [Legends.2014.S01E02.720p.HDTV.X264-DIMENSION.nzb] to the queue.
14-8-20 20:26:38.1|Info|Nzbget|Adding report [Legends.2014.S01E02.720p.HDTV.X264-DIMENSION.nzb] to the queue.
14-8-20 20:26:39.0|Info|DownloadService|Report sent to download client. Legends.2014.S01E02.720p.HDTV.X264-DIMENSION
14-8-20 20:26:39.5|Info|RssSyncService|RSS Sync Completed. Reports found: 298, Reports downloaded: 1
14-8-20 20:30:11.0|Info|HousekeepingService|Running housecleaning tasks
14-8-20 20:30:16.7|Info|Database|Vacuuming database
14-8-20 20:30:17.4|Info|Database|Database Compressed
14-8-20 20:30:17.9|Warn|EpisodeFileMovingService|Unable to set last write time
System.IO.IOException: Invalid parameter
at System.IO.File.SetLastWriteTime (System.String path, DateTime lastWriteTime) [0x00000] in :0
at System.IO.Directory.SetLastWriteTime (System.String path, DateTime lastWriteTime) [0x00000] in :0
at System.IO.Directory.SetLastWriteTimeUtc (System.String path, DateTime lastWriteTimeUtc) [0x00000] in :0
at NzbDrone.Common.Disk.DiskProviderBase.FolderSetLastWriteTimeUtc (System.String path, DateTime dateTime) [0x00000] in :0
at NzbDrone.Core.MediaFiles.EpisodeFileMovingService.TransferFile (NzbDrone.Core.MediaFiles.EpisodeFile episodeFile, NzbDrone.Core.Tv.Series series, System.Collections.Generic.List`1 episodes, System.String destinationFilename, Boolean copyOnly) [0x00000] in :0
14-8-20 20:30:23.5|Info|CompletedDownloadService|[Legends.2014.S01E02.720p.HDTV.X264-DIMENSION] Imported 1 files.
14-8-20 20:36:56.3|Info|RssSyncService|Starting RSS Sync
14-8-20 20:36:56.8|Warn|HttpProvider|Failed to get response from: https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:36:57.0|Warn|FetchFeedService|nzbSooti https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:37:02.4|Info|DownloadDecisionMaker|Processing 198 reports
14-8-20 20:37:04.0|Info|RssSyncService|RSS Sync Completed. Reports found: 198, Reports downloaded: 0
14-8-20 20:44:37.3|Info|BackupService|Starting Backup
14-8-20 20:47:11.2|Info|RssSyncService|Starting RSS Sync
14-8-20 20:47:11.8|Warn|HttpProvider|Failed to get response from: https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:47:11.9|Warn|FetchFeedService|nzbSooti https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:47:17.2|Info|DownloadDecisionMaker|Processing 298 reports
14-8-20 20:47:19.2|Info|Nzbget|Adding report [Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION.nzb] to the queue.
14-8-20 20:47:20.2|Info|Nzbget|Adding report [Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION.nzb] to the queue.
14-8-20 20:47:21.1|Info|DownloadService|Report sent to download client. Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION
14-8-20 20:47:21.5|Info|RssSyncService|RSS Sync Completed. Reports found: 298, Reports downloaded: 1
14-8-20 20:50:29.9|Fatal|NzbDroneErrorPipeline|Request Failed
14-8-20 20:50:53.5|Warn|ImportApprovedEpisodes|Couldn’t import episode /home/Media/downloads/dst/TV/Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION/Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION.mkv
System.IO.IOException: Invalid parameter
at System.IO.File.SetLastWriteTime (System.String path, DateTime lastWriteTime) [0x00000] in :0
at System.IO.File.SetLastWriteTimeUtc (System.String path, DateTime lastWriteTimeUtc) [0x00000] in :0
at NzbDrone.Common.Disk.DiskProviderBase.FileSetLastWriteTimeUtc (System.String path, DateTime dateTime) [0x00000] in :0
at NzbDrone.Core.MediaFiles.RecycleBinProvider.DeleteFile (System.String path) [0x00000] in :0
at NzbDrone.Core.MediaFiles.UpgradeMediaFileService.UpgradeEpisodeFile (NzbDrone.Core.MediaFiles.EpisodeFile episodeFile, NzbDrone.Core.Parser.Model.LocalEpisode localEpisode, Boolean copyOnly) [0x00000] in :0
at NzbDrone.Core.MediaFiles.EpisodeImport.ImportApprovedEpisodes.Import (System.Collections.Generic.List`1 decisions, Boolean newDownload, NzbDrone.Core.Download.DownloadClientItem historyItem) [0x00000] in :0
14-8-20 20:50:53.6|Info|CompletedDownloadService|[Legends.2014.S01E02.REPACK.720p.HDTV.X264-DIMENSION] Imported 1 files.
14-8-20 20:57:26.3|Info|RssSyncService|Starting RSS Sync
14-8-20 20:57:26.9|Warn|HttpProvider|Failed to get response from: https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:57:27.0|Warn|FetchFeedService|nzbSooti https://www.nzbsooti.sx/api?t=tvsearch&cat=5030,5040&extended=1&apikey= Error: ConnectFailure (Connection refused)
14-8-20 20:57:32.5|Info|DownloadDecisionMaker|Processing 298 reports
14-8-20 20:57:34.5|Info|RssSyncService|RSS Sync Completed. Reports found: 298, Reports downloaded: 0
14-8-20 21:07:38.4|Info|RssSyncService|Starting RSS Sync
Let me know if you need anything else.
thanks