From 1dacb69d80d0fd65f8c45dd54ab278bc8fb28ed1 Mon Sep 17 00:00:00 2001
From: Shadowghost <Ghost_of_Stone@web.de>
Date: Sun, 1 Feb 2026 21:51:36 +0100
Subject: [PATCH] Fix Genre Uniqueness

---
 Jellyfin.Api/Controllers/ItemUpdateController.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Jellyfin.Api/Controllers/ItemUpdateController.cs b/Jellyfin.Api/Controllers/ItemUpdateController.cs
index b127433962..4faec060d8 100644
--- a/Jellyfin.Api/Controllers/ItemUpdateController.cs
+++ b/Jellyfin.Api/Controllers/ItemUpdateController.cs
@@ -249,7 +249,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         item.IndexNumber = request.IndexNumber;
         item.ParentIndexNumber = request.ParentIndexNumber;
         item.Overview = request.Overview;
-        item.Genres = request.Genres;
+        item.Genres = request.Genres.Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
 
         if (item is Episode episode)
         {