@Luke, There is still an issue with the library db containing old references to paths and content that no longer exists.
Last night, Radarr upgraded a movie and I wanted to see what had happened - difference in quality etc. So I looked in the server log for the details and found a whole lot of references to failures to Thumbnail Image Extraction. It seems that every movie that was on the original D:\ drive (which no longer exists) is still present in the library.db.
I have included an excerpt of the log for you below.
Is there a mechanism for removing old path references when libraries are updated, particularly when paths are changed due to reconfigurations of hardware?. If so it is clearly not working 
2019-03-25 02:00:00.003 Info TaskManager: DailyTrigger fired for task: Thumbnail image extraction
2019-03-25 02:00:00.004 Info TaskManager: Queueing task ChapterImagesTask
2019-03-25 02:00:00.004 Info TaskManager: Executing Thumbnail image extraction
2019-03-25 02:00:00.004 Info TaskManager: Scheduled task Thumbnail image extraction will run with a time limit of 240 minutes
2019-03-25 02:00:00.253 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\127 Hours (2010)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\127 Hours (2010)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.273 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\127 Hours (2010)\127 Hours (2010)-trailer.mov
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\127 Hours (2010)'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.294 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\2001 A Space Odyssey (1968)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\2001 A Space Odyssey (1968)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.314 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\27 Dresses (2008)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\27 Dresses (2008)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.334 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\310 to Yuma (2007)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\310 to Yuma (2007)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.355 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\310 to Yuma (2007)\310 to Yuma (2007)-trailer.mov
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\310 to Yuma (2007)'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.375 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\A Knight's Tale (2001)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\A Knight's Tale (2001)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.395 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\A Most Wanted Man (2014)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\A Most Wanted Man (2014)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
2019-03-25 02:00:00.416 Error ChapterImagesTask: Error refreshing thumbnails for D:\Movies\A View to a Kill (1985)\backdrops\theme.mp4
*** Error Report ***
Version: 4.1.0.16
Command line: C:\Users\Paul\AppData\Roaming\Emby-Server\system\EmbyServer.dll -noautorunwebapp
Operating system: Microsoft Windows NT 6.2.9200.0
64-Bit OS: True
64-Bit Process: True
User Interactive: True
Processor count: 8
Program data path: C:\Users\Paul\AppData\Roaming\Emby-Server\programdata
Application directory: C:\Users\Paul\AppData\Roaming\Emby-Server\system
System.IO.IOException: System.IO.IOException: The device is not ready : 'D:\Movies\A View to a Kill (1985)\backdrops'
at System.IO.Enumeration.FileSystemEnumerator`1.CreateDirectoryHandle(String path, Boolean ignoreNotFound)
at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options)
at System.IO.Enumeration.FileSystemEnumerableFactory.FileSystemInfos(String directory, String expression, EnumerationOptions options)
at System.IO.DirectoryInfo.InternalEnumerateInfos(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
at System.IO.DirectoryInfo.EnumerateFileSystemInfos(String searchPattern, SearchOption searchOption)
at Emby.Server.Implementations.IO.ManagedFileSystem.GetFileSystemEntries(String path, Boolean recursive)
at MediaBrowser.Controller.Providers.DirectoryService.GetFileSystemEntries(String path)
at MediaBrowser.Controller.Providers.DirectoryService.GetFiles(String path)
at MediaBrowser.Controller.Entities.Video.GetBifsFromFolder(IDirectoryService directoryService, String folder, String requiredPrefix)
at MediaBrowser.Controller.Entities.Video.GetLocalBifs(IDirectoryService directoryService)
at MediaBrowser.Controller.Entities.Video.GetLocalThumbnailSetInfos(IDirectoryService directoryService)
at MediaBrowser.Providers.MediaInfo.ThumbnailGenerator.RefreshThumbnailImages(Video item, LibraryOptions libraryOptions, IDirectoryService directoryService, List`1 chapters, Boolean extractImages, Boolean saveChapters, CancellationToken cancellationToken)
at MediaBrowser.Providers.MediaInfo.ChapterImagesTask.Execute(CancellationToken cancellationToken, IProgress`1 progress)
Source: System.IO.FileSystem
TargetSite: IntPtr CreateDirectoryHandle(System.String, Boolean)
Edited by jordy, 24 March 2019 - 08:46 PM.