[DanCooper]

Please upload the full log file.

Sorry, I forgot about this.

https://dl.dropboxusercontent.com/u/5030...-04-11.csv

That looks like you try to sync an episode that has an NFO, but season and/or episode number is unknown (also the episode has no title):

Code:

[APIKodi] [Kodi Host] UpdateTVEpisodeInfo: "" | Start syncing process...    
[APIKodi] [Kodi Host] SearchTVShow: "\\FREENAS\HallNasShare\Media\Video\TV\Cartoons-Anime\Afro Samurai" | OK; found in host database! [ID:489]    
ERROR    "EXCEPTION OCCURRED:System.Exception: {
  ""code"": -32602;
  ""data"": {
    ""method"": ""VideoLibrary.GetEpisodes"";
    ""stack"": {
      ""message"": ""Value between 0 (inclusive) and 2147483647 (inclusive) expected but -1 received"";
      ""name"": ""season"";
      ""type"": ""integer""
    }
  };
  ""message"": ""Invalid params.""
}
[APIKodi] [Kodi Host] UpdateTVEpisodeInfo: "" | NOT found in database; scan directory on host...    
[APIKodi] [Kodi Host] ScanVideoPath: "smb://FREENAS/HallNasShare/Media/Video/TV/Cartoons-Anime/Afro Samurai/" | Start scanning process...    
[APIKodi] [Kodi Host] IsScanningVideo: False    
[APIKodi] [Kodi Host] SearchTVShow: "\\FREENAS\HallNasShare\Media\Video\TV\Cartoons-Anime\Afro Samurai" | OK; found in host database! [ID:489]    
ERROR "EXCEPTION OCCURRED:System.Exception: {
  ""code"": -32602;
  ""data"": {
    ""method"": ""VideoLibrary.GetEpisodes"";
    ""stack"": {
      ""message"": ""Value between 0 (inclusive) and 2147483647 (inclusive) expected but -1 received"";
      ""name"": ""season"";
      ""type"": ""integer""
    }
  };
  ""message"": ""Invalid params.""
}
[APIKodi] [Kodi Host] UpdateTVEpisodeInfo: "" | NOT found on host! Abort!

In the line

Code:

[APIKodi] [Kodi Host] UpdateTVEpisodeInfo: "" | NOT found in database; scan directory on host...

the episode title should be between the "" characters. So i think there is a problem with your NFO file for some "Afro Samurai" episodes.