Not sure what is causing this. Files are ok and playable. I saw someone else having this issue a few years ago, but it seemed to be resolved by an Sonarr fix.
I should add that the Game of Thrones episodes are the only ones having this issue as many other episodes I grabbed today are parsing just fine.
Couldn’t import episode E:\Downloads\complete\Game of Thrones S06E01 The Red Woman 1080p Bluray.mkv: Input string was not in a correct format.
Exception
System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseDecimal(String value, NumberStyles options, NumberFormatInfo numfmt)
at NzbDrone.Core.MediaFiles.MediaInfo.MediaInfoModel.<>c.<get_FormattedAudioChannels>b__73_0(String s) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MediaFiles\MediaInfo\MediaInfoModel.cs:line 51
at System.Linq.Enumerable.WhereSelectArrayIterator2.MoveNext() at System.Linq.Enumerable.Sum(IEnumerable1 source)
at NzbDrone.Core.MediaFiles.MediaInfo.MediaInfoModel.get_FormattedAudioChannels() in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MediaFiles\MediaInfo\MediaInfoModel.cs:line 51
at NzbDrone.Core.Organizer.FileNameBuilder.AddMediaInfoTokens(Dictionary2 tokenHandlers, EpisodeFile episodeFile) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Organizer\FileNameBuilder.cs:line 527 at NzbDrone.Core.Organizer.FileNameBuilder.BuildFileName(List1 episodes, Series series, EpisodeFile episodeFile, NamingConfig namingConfig) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Organizer\FileNameBuilder.cs:line 130
at NzbDrone.Core.MediaFiles.EpisodeFileMovingService.MoveEpisodeFile(EpisodeFile episodeFile, LocalEpisode localEpisode) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MediaFiles\EpisodeFileMovingService.cs:line 73
at NzbDrone.Core.MediaFiles.UpgradeMediaFileService.UpgradeEpisodeFile(EpisodeFile episodeFile, LocalEpisode localEpisode, Boolean copyOnly) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MediaFiles\UpgradeMediaFileService.cs:line 64
at NzbDrone.Core.MediaFiles.EpisodeImport.ImportApprovedEpisodes.Import(List`1 decisions, Boolean newDownload, DownloadClientItem downloadClientItem, ImportMode importMode) in M:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MediaFiles\EpisodeImport\ImportApprovedEpisodes.cs:line 103
General
Unique ID : 204966747203753736456657206246816841616 (0x9A3328DBD46A968A8BE8E0C2F4CF7F90)
Complete name : D:\TV.Series\Game.of.Thrones.1080p\Season 6\Game of Thrones S06E01 The Red Woman 1080p Bluray.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 9.74 GiB
Duration : 50 min 4 s
Overall bit rate mode : Variable
Overall bit rate : 27.9 Mb/s
Movie name : Game of Thrones S06E01 The Red Woman 1080p Blu-ray Remux AVC Atmos - KRaLiMaRKo
Encoded date : UTC 2017-02-03 03:27:15
Writing application : mkvmerge v9.8.0 ('Kuglblids') 64bit
Writing library : libebml v1.3.4 + libmatroska v1.4.5
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 50 min 4 s
Bit rate mode : Variable
Bit rate : 23.9 Mb/s
Maximum bit rate : 34.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (23976/1000) FPS
Original frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.480
Stream size : 8.34 GiB (86%)
Language : English
Default : Yes
Forced : No
Audio
ID : 2
Format : Atmos / TrueHD
Codec ID : A_TRUEHD
Duration : 50 min 4 s
Bit rate mode : Variable
Bit rate : 3 914 kb/s
Maximum bit rate : 6 855 kb/s
Channel(s) : Object Based / 8 channels
Channel positions : Object Based / Front: L C R, Side: L R, Back: L R, LFE
Sampling rate : / 48.0 kHz
Frame rate : 1 200.000 FPS (40 spf)
Compression mode : Lossless
Stream size : 1.37 GiB (14%)
Language : English
Default : Yes
Forced : No
Text #1
ID : 3
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 11 min 31 s
Bit rate : 6 115 b/s
Count of elements : 166
Stream size : 516 KiB (0%)
Title : Forced
Language : English
Default : Yes
Forced : No
Text #2
ID : 4
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 43 min 58 s
Bit rate : 10.5 kb/s
Count of elements : 1088
Stream size : 3.29 MiB (0%)
Title : SDH
Language : English
Default : No
Forced : No
Menu
00:00:00.000 : en:00:00:00.000
00:01:56.116 : en:00:01:56.116
00:09:34.616 : en:00:09:34.616
00:19:05.603 : en:00:19:05.603
00:29:02.366 : en:00:29:02.366
00:35:32.464 : en:00:35:32.464
00:41:22.063 : en:00:41:22.063
00:48:42.336 : en:00:48:42.336