Backport pull request #11541 from jellyfin/release-10.9.z

Fix migration with special Rating

Original-merge: efba619acbe4849205874a464511ffcfd4aad2ba

Merged-by: crobibero <cody@robibe.ro>

Backported-by: Joshua M. Boniface <joshua@boniface.me>

1 files changed, 11 insertions, 3 deletions

diff --git a/Emby.Server.Implementations/Localization/LocalizationManager.cs b/Emby.Server.Implementations/Localization/LocalizationManager.cs
index bae201c70..ac453a5b0 100644
--- a/Emby.Server.Implementations/Localization/LocalizationManager.cs
+++ b/Emby.Server.Implementations/Localization/LocalizationManager.cs
@@ -321,7 +321,11 @@ namespace Emby.Server.Implementations.Localization
             // Try splitting by : to handle "Germany: FSK-18"
             if (rating.Contains(':', StringComparison.OrdinalIgnoreCase))
             {
-                return GetRatingLevel(rating.AsSpan().RightPart(':').ToString());
+                var ratingLevelRightPart = rating.AsSpan().RightPart(':');
+                if (ratingLevelRightPart.Length != 0)
+                {
+                    return GetRatingLevel(ratingLevelRightPart.ToString());
+                }
             }
 
             // Handle prefix country code to handle "DE-18"
@@ -332,8 +336,12 @@ namespace Emby.Server.Implementations.Localization
                 // Extract culture from country prefix
                 var culture = FindLanguageInfo(ratingSpan.LeftPart('-').ToString());
 
-                // Check rating system of culture
-                return GetRatingLevel(ratingSpan.RightPart('-').ToString(), culture?.TwoLetterISOLanguageName);
+                var ratingLevelRightPart = ratingSpan.RightPart('-');
+                if (ratingLevelRightPart.Length != 0)
+                {
+                    // Check rating system of culture
+                    return GetRatingLevel(ratingLevelRightPart.ToString(), culture?.TwoLetterISOLanguageName);
+                }
             }
 
             return null;