Sonarr version (exact version): 2.0.0.5338
Mono version (if Sonarr is not running on Windows): 6.4.0.198
OS: CentOS 7
I know migration from Windows to Linux is not officially supported. Still hoping to get help in understanding what the issue is I’m facing 
I installed Sonarr clean on my Linux box, copied the app data directory over, and manually edited the sqlite database to update the root folder location and all series folder locations to be correct. Everything scanned and imported well, all looked good!
I found an episode missing and told Sonarr to download it via Automatic search. This works correctly, it sends the download request to qbittorrent-nox, and the download completes. However, after the download is complete Sonarr never seems to import it, just delete it from the queue. The downloaded file never gets put in the series’ folder.
In addition, while the download is happening I do not see the download in the Activity queue.
If I restart Sonarr, I can get one download to work properly with full Activity tracking, adding the file to the media folder, and all. Then deleting the file from the disk, rescanning the media folder, and then telling it to redownload the file results in the above behavior (downloads, doesn’t track it under Activity, deletes it at the end and doesn’t add it to the media folder).
Below is the trace log where sonarr sees the download and then deletes it when it’s complete. Any help in understanding what is going on is appreciated, thank you!
19-10-21 14:57:07.2|Trace|HttpClient|Res: [GET] http://localhost:80/query/preferences: 200.OK (4 ms)
19-10-21 14:57:07.2|Trace|HttpClient|Response content (1923 bytes): {"add_trackers":"","add_trackers_enabled":false,"alt_dl_limit":-1,"alt_up_limit":-1,"anonymous_mode":false,"autorun_enabled":true,"autorun_program":"/var/lib/plexmediaserver/send_email.sh \"%N\"","bypass_local_auth":true,"dht":true,"dl_limit":-1,"dont_count_slow_torrents":true,"dyndns_domain":"changeme.dyndns.org","dyndns_enabled":false,"dyndns_password":"","dyndns_service":0,"dyndns_username":"","enable_utp":true,"encryption":0,"export_dir":"","export_dir_fin":"","force_proxy":true,"incomplete_files_ext":false,"ip_filter_enabled":false,"ip_filter_path":"","ip_filter_trackers":false,"limit_tcp_overhead":false,"limit_utp_rate":true,"listen_port":8999,"locale":"en","lsd":true,"mail_notification_auth_enabled":false,"mail_notification_email":"russell@jonesmail.me","mail_notification_enabled":false,"mail_notification_password":"(removed)","mail_notification_smtp":"mail.jonesmail.me","mail_notification_ssl_enabled":true,"mail_notification_username":"(removed)","max_active_downloads":200,"max_active_torrents":200,"max_active_uploads":200,"max_connec":500,"max_connec_per_torrent":100,"max_ratio":0,"max_ratio_act":0,"max_ratio_enabled":true,"max_uploads":-1,"max_uploads_per_torrent":-1,"pex":true,"preallocate_all":false,"proxy_auth_enabled":true,"proxy_ip":"184.75.220.106","proxy_password":"(removed)","proxy_peer_connections":true,"proxy_port":1080,"proxy_type":4,"proxy_username":"(removed)","queueing_enabled":true,"random_port":false,"save_path":"/mnt/Torrents/Completed/","scan_dirs":{},"schedule_from_hour":8,"schedule_from_min":0,"schedule_to_hour":20,"schedule_to_min":0,"scheduler_days":0,"scheduler_enabled":false,"ssl_cert":"","ssl_key":"","temp_path":"/mnt/Torrents/Downloading/","temp_path_enabled":true,"up_limit":250,"upnp":true,"use_https":false,"web_ui_password":"(removed)","web_ui_port":80,"web_ui_upnp":false,"web_ui_username":"(removed)"}
19-10-21 14:57:07.3|Trace|HttpClient|Req: [GET] http://localhost:80/query/torrents?label=tv-sonarr&category=tv-sonarr
19-10-21 14:57:07.3|Trace|ConfigService|Using default config value for 'proxyenabled' defaultValue:'False'
19-10-21 14:57:07.3|Trace|HttpClient|Res: [GET] http://localhost:80/query/torrents?label=tv-sonarr&category=tv-sonarr: 200.OK (5 ms)
19-10-21 14:57:07.3|Trace|HttpClient|Response content (546 bytes): [{"added_on":1571687734,"category":"tv-sonarr","completion_on":1571687821,"dlspeed":1874986,"eta":18446744073709552000,"f_l_piece_prio":false,"force_start":false,"hash":"35f410312849c9ce9fb7adc7eea173ad63bff27b","name":"Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg]","num_complete":156,"num_incomplete":15,"num_leechs":1,"num_seeds":0,"priority":0,"progress":1,"ratio":0.0022189074757347138,"save_path":"/mnt/Torrents/Completed/","seq_dl":false,"size":771077350,"state":"uploading","super_seeding":false,"upspeed":1225}]
19-10-21 14:57:07.3|Debug|TrackedDownloadService|Tracking 'qbittorrent:Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg]': ClientState=Completed (readonly) SonarrStage=Imported Episode='Modern Family - S11E04 WEBDL-720p v1' OutputPath=/mnt/Torrents/Completed/Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg].
19-10-21 14:57:07.3|Trace|EventAggregator|Publishing TrackedDownloadRefreshedEvent
19-10-21 14:57:07.3|Trace|EventAggregator|TrackedDownloadRefreshedEvent -> QueueService
19-10-21 14:57:07.3|Trace|EventAggregator|Publishing QueueUpdatedEvent
19-10-21 14:57:07.3|Trace|EventAggregator|QueueUpdatedEvent -> QueueModule
19-10-21 14:57:07.3|Trace|EventAggregator|QueueUpdatedEvent <- QueueModule
19-10-21 14:57:07.3|Trace|EventAggregator|TrackedDownloadRefreshedEvent <- QueueService
19-10-21 14:57:07.3|Trace|CommandQueueManager|Updating command status
19-10-21 14:57:07.3|Trace|EventAggregator|Publishing CommandExecutedEvent
19-10-21 14:57:07.3|Trace|EventAggregator|CommandExecutedEvent -> TaskManager
19-10-21 14:57:07.3|Trace|TaskManager|Updating last run time for: NzbDrone.Core.Download.CheckForFinishedDownloadCommand
19-10-21 14:57:07.3|Trace|EventAggregator|CommandExecutedEvent <- TaskManager
19-10-21 14:57:07.3|Trace|EventAggregator|CommandExecutedEvent -> TaskModule
19-10-21 14:57:07.3|Trace|EventAggregator|CommandExecutedEvent <- TaskModule
19-10-21 14:57:07.3|Trace|CommandExecutor|CheckForFinishedDownloadCommand <- DownloadMonitoringService [00:00:00.0850360]
19-10-21 14:57:07.4|Trace|Http|Req: 105 [GET] /api/queue?sort_by=timeleft&order=asc
19-10-21 14:57:07.4|Trace|Http|Res: 105 [GET] /api/queue?sort_by=timeleft&order=asc: 200.OK (6 ms)
19-10-21 14:57:07.4|Debug|Api|[GET] /api/queue?sort_by=timeleft&order=asc: 200.OK (6 ms)
19-10-21 14:57:23.7|Trace|Http|Req: 106 [GET] /api/history?page=1&pageSize=15&sortKey=date&sortDir=desc
19-10-21 14:57:23.9|Trace|Http|Res: 106 [GET] /api/history?page=1&pageSize=15&sortKey=date&sortDir=desc: 200.OK (280 ms)
19-10-21 14:57:23.9|Debug|Api|[GET] /api/history?page=1&pageSize=15&sortKey=date&sortDir=desc: 200.OK (280 ms)
19-10-21 14:57:29.1|Trace|Http|Req: 107 [GET] /api/series?sort_by=sortTitle&order=asc
19-10-21 14:57:29.3|Trace|Http|Res: 107 [GET] /api/series?sort_by=sortTitle&order=asc: 200.OK (188 ms)
19-10-21 14:57:29.3|Debug|Api|[GET] /api/series?sort_by=sortTitle&order=asc: 200.OK (188 ms)
19-10-21 14:57:37.2|Trace|Scheduler|Pending Tasks: 0
19-10-21 14:58:07.2|Trace|Scheduler|Pending Tasks: 0
19-10-21 14:58:37.2|Trace|Scheduler|Pending Tasks: 1
19-10-21 14:58:37.2|Trace|CommandQueueManager|Publishing CheckForFinishedDownload
19-10-21 14:58:37.2|Trace|CommandQueueManager|Checking if command is queued or started: CheckForFinishedDownload
19-10-21 14:58:37.2|Trace|CommandQueueManager|Inserting new command: CheckForFinishedDownload
19-10-21 14:58:37.2|Trace|CommandExecutor|CheckForFinishedDownloadCommand -> DownloadMonitoringService
19-10-21 14:58:37.2|Trace|CommandQueueManager|Marking command as started: CheckForFinishedDownload
19-10-21 14:58:37.3|Trace|HttpClient|Req: [GET] http://localhost:80/query/preferences
19-10-21 14:58:37.3|Trace|ConfigService|Using default config value for 'proxyenabled' defaultValue:'False'
19-10-21 14:58:37.3|Trace|HttpClient|Res: [GET] http://localhost:80/query/preferences: 200.OK (4 ms)
19-10-21 14:58:37.3|Trace|HttpClient|Response content (1923 bytes): {"add_trackers":"","add_trackers_enabled":false,"alt_dl_limit":-1,"alt_up_limit":-1,"anonymous_mode":false,"autorun_enabled":true,"autorun_program":"/var/lib/plexmediaserver/send_email.sh \"%N\"","bypass_local_auth":true,"dht":true,"dl_limit":-1,"dont_count_slow_torrents":true,"dyndns_domain":"changeme.dyndns.org","dyndns_enabled":false,"dyndns_password":"","dyndns_service":0,"dyndns_username":"","enable_utp":true,"encryption":0,"export_dir":"","export_dir_fin":"","force_proxy":true,"incomplete_files_ext":false,"ip_filter_enabled":false,"ip_filter_path":"","ip_filter_trackers":false,"limit_tcp_overhead":false,"limit_utp_rate":true,"listen_port":8999,"locale":"en","lsd":true,"mail_notification_auth_enabled":false,"mail_notification_email":"russell@jonesmail.me","mail_notification_enabled":false,"mail_notification_password":"(removed)","mail_notification_smtp":"mail.jonesmail.me","mail_notification_ssl_enabled":true,"mail_notification_username":"(removed)","max_active_downloads":200,"max_active_torrents":200,"max_active_uploads":200,"max_connec":500,"max_connec_per_torrent":100,"max_ratio":0,"max_ratio_act":0,"max_ratio_enabled":true,"max_uploads":-1,"max_uploads_per_torrent":-1,"pex":true,"preallocate_all":false,"proxy_auth_enabled":true,"proxy_ip":"184.75.220.106","proxy_password":"(removed)","proxy_peer_connections":true,"proxy_port":1080,"proxy_type":4,"proxy_username":"(removed)","queueing_enabled":true,"random_port":false,"save_path":"/mnt/Torrents/Completed/","scan_dirs":{},"schedule_from_hour":8,"schedule_from_min":0,"schedule_to_hour":20,"schedule_to_min":0,"scheduler_days":0,"scheduler_enabled":false,"ssl_cert":"","ssl_key":"","temp_path":"/mnt/Torrents/Downloading/","temp_path_enabled":true,"up_limit":250,"upnp":true,"use_https":false,"web_ui_password":"(removed)","web_ui_port":80,"web_ui_upnp":false,"web_ui_username":"(removed)"}
19-10-21 14:58:37.3|Trace|HttpClient|Req: [GET] http://localhost:80/query/torrents?label=tv-sonarr&category=tv-sonarr
19-10-21 14:58:37.3|Trace|ConfigService|Using default config value for 'proxyenabled' defaultValue:'False'
19-10-21 14:58:37.3|Trace|HttpClient|Res: [GET] http://localhost:80/query/torrents?label=tv-sonarr&category=tv-sonarr: 200.OK (5 ms)
19-10-21 14:58:37.3|Trace|HttpClient|Response content (522 bytes): [{"added_on":1571687734,"category":"tv-sonarr","completion_on":1571687821,"dlspeed":0,"eta":8640000,"f_l_piece_prio":false,"force_start":false,"hash":"35f410312849c9ce9fb7adc7eea173ad63bff27b","name":"Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg]","num_complete":154,"num_incomplete":15,"num_leechs":0,"num_seeds":0,"priority":0,"progress":1,"ratio":0.002296133216223024,"save_path":"/mnt/Torrents/Completed/","seq_dl":false,"size":771077350,"state":"pausedUP","super_seeding":false,"upspeed":0}]
19-10-21 14:58:37.3|Debug|TrackedDownloadService|Tracking 'qbittorrent:Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg]': ClientState=Completed SonarrStage=Imported Episode='Modern Family - S11E04 WEBDL-720p v1' OutputPath=/mnt/Torrents/Completed/Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg].
19-10-21 14:58:37.3|Trace|EventAggregator|Publishing DownloadCompletedEvent
19-10-21 14:58:37.3|Trace|EventAggregator|DownloadCompletedEvent -> DownloadEventHub
19-10-21 14:58:37.3|Debug|DownloadEventHub|[Modern.Family.S11E04.Pool.Party.720p.AMZN.WEBRip.DDP5.1.x264-NTb[rarbg]] Removing download from qbittorrent history
19-10-21 14:58:37.3|Trace|HttpClient|Req: [POST] http://localhost:80/command/deletePerm: hashes=35f410312849c9ce9fb7adc7eea173ad63bff27b
19-10-21 14:58:37.3|Trace|ConfigService|Using default config value for 'proxyenabled' defaultValue:'False'
19-10-21 14:58:37.3|Trace|HttpClient|Res: [POST] http://localhost:80/command/deletePerm: 200.OK (5 ms)