Fixed #2601

src/Ombi.Schedule/Jobs/Ombi/NewsletterJob.cs

@@ -101,9 +101,9 @@ namespace Ombi.Schedule.Jobs.Ombi
                 var lidarrContent = _lidarrAlbumRepository.GetAll().Where(x => x.FullyAvailable).AsNoTracking();
 
                 var addedLog = _recentlyAddedLog.GetAll();
-                var addedPlexMovieLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Plex && x.ContentType == ContentType.Parent).Select(x => x.ContentId);
-                var addedEmbyMoviesLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Emby && x.ContentType == ContentType.Parent).Select(x => x.ContentId);
-                var addedAlbumLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Lidarr && x.ContentType == ContentType.Album).Select(x => x.AlbumId);
+                var addedPlexMovieLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Plex && x.ContentType == ContentType.Parent).Select(x => x.ContentId).ToHashSet();
+                var addedEmbyMoviesLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Emby && x.ContentType == ContentType.Parent).Select(x => x.ContentId).ToHashSet();
+                var addedAlbumLogIds = addedLog.Where(x => x.Type == RecentlyAddedType.Lidarr && x.ContentType == ContentType.Album).Select(x => x.AlbumId).ToHashSet();
 
                 var addedPlexEpisodesLogIds =
                 addedLog.Where(x => x.Type == RecentlyAddedType.Plex && x.ContentType == ContentType.Episode);