Fixed: All issues regarding Media Covers should be fixed now after apply this update. Refresh browser cache if still missing and report issues on forum.

src/NzbDrone.Api/Frontend/Mappers/MediaCoverMapper.cs

@@ -13,11 +13,13 @@ public class MediaCoverMapper : StaticResourceMapperBase
         private static readonly Regex RegexResizedImage = new Regex(@"-\d+\.jpg($|\?)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
 
         private readonly IAppFolderInfo _appFolderInfo;
+        private readonly IDiskProvider _diskProvider;
 
         public MediaCoverMapper(IAppFolderInfo appFolderInfo, IDiskProvider diskProvider, Logger logger)
             : base(diskProvider, logger)
         {
             _appFolderInfo = appFolderInfo;
+            _diskProvider = diskProvider;
         }
 
         public override string Map(string resourceUrl)
@@ -25,25 +27,18 @@ public override string Map(string resourceUrl)
             var path = resourceUrl.Replace('/', Path.DirectorySeparatorChar);
             path = path.Trim(Path.DirectorySeparatorChar);
 
-            return Path.Combine(_appFolderInfo.GetAppDataPath(), path);
+            var resourcePath = Path.Combine(_appFolderInfo.GetAppDataPath(), path);
-        }
 
-        public override Response GetResponse(string resourceUrl)
+            if (!_diskProvider.FileExists(resourcePath) || _diskProvider.GetFileSize(resourcePath) == 0)
-        {
-            var result =  base.GetResponse(resourceUrl);
-
-            // Return the full sized image if someone requests a non-existing resized one.
-            // TODO: This code can be removed later once everyone had the update for a while.
-            if (result is NotFoundResponse)
             {
-                var baseResourceUrl = RegexResizedImage.Replace(resourceUrl, ".jpg$1");
+                var baseResourcePath = RegexResizedImage.Replace(resourcePath, ".jpg$1");
-                if (baseResourceUrl != resourceUrl)
+                if (baseResourcePath != resourcePath)
                 {
-                    result = base.GetResponse(baseResourceUrl);
+                    return baseResourcePath;
                 }
             }
 
-            return result;
+            return resourcePath;
         }
 
         public override bool CanHandle(string resourceUrl)

src/NzbDrone.Api/MediaCovers/MediaCoverModule.cs

@@ -29,7 +29,7 @@ private Response GetMediaCover(int seriesId, string filename)
         {
             var filePath = Path.Combine(_appFolderInfo.GetAppDataPath(), "MediaCover", seriesId.ToString(), filename);
 
-            if (!_diskProvider.FileExists(filePath))
+            if (!_diskProvider.FileExists(filePath) || _diskProvider.GetFileSize(filePath) == 0)
             {
                 // Return the full sized image if someone requests a non-existing resized one.
                 // TODO: This code can be removed later once everyone had the update for a while.

src/NzbDrone.Core.Test/MediaCoverTests/MediaCoverServiceFixture.cs

@@ -159,7 +159,8 @@ public void should_log_error_if_resize_failed()
 
             Subject.HandleAsync(new SeriesUpdatedEvent(_series));
 
-            ExceptionVerification.ExpectedErrors(1);
+            Mocker.GetMock<IImageResizer>()
+                  .Verify(v => v.Resize(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<int>()), Times.Exactly(2));
         }
     }
 }

src/NzbDrone.Core/MediaCover/MediaCoverService.cs

@@ -106,14 +106,7 @@ private void EnsureCovers(Series series)
                     _logger.ErrorException("Couldn't download media cover for " + series, e);
                 }
 
-                try
+                EnsureResizedCovers(series, cover, !alreadyExists);
-                {
-                    EnsureResizedCovers(series, cover, !alreadyExists);
-                }
-                catch (Exception e)
-                {
-                    _logger.ErrorException("Couldn't resize media cover for " + series + " using full size image instead.", e);
-                }
             }
         }
 
@@ -158,7 +151,14 @@ private void EnsureResizedCovers(Series series, MediaCover cover, bool forceResi
                 {
                     _logger.Debug("Resizing {0}-{1} for {2}", cover.CoverType, height, series);
 
-                    _resizer.Resize(mainFileName, resizeFileName, height);
+                    try
+                    {
+                        _resizer.Resize(mainFileName, resizeFileName, height);
+                    }
+                    catch
+                    {
+                        _logger.Debug("Couldn't resize media cover {0}-{1} for {2}, using full size image instead.", cover.CoverType, height, series);
+                    }
                 }
             }
         }