From f33c039d1b24bfc2b45357c508690cb995fbce0c Mon Sep 17 00:00:00 2001
From: theguymadmax <theguymadmax@proton.me>
Date: Fri, 27 Mar 2026 13:48:30 -0400
Subject: [PATCH] Fix BoxSet parentId being ignored in item queries

---
 Jellyfin.Api/Controllers/ItemsController.cs | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/Jellyfin.Api/Controllers/ItemsController.cs b/Jellyfin.Api/Controllers/ItemsController.cs
index 091a0c8c73..39760556a6 100644
--- a/Jellyfin.Api/Controllers/ItemsController.cs
+++ b/Jellyfin.Api/Controllers/ItemsController.cs
@@ -11,6 +11,7 @@ using Jellyfin.Extensions;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Controller.Dto;
 using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Movies;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Session;
 using MediaBrowser.Model.Dto;
@@ -270,15 +271,17 @@ public class ItemsController : BaseJellyfinApiController
         var dtoOptions = new DtoOptions { Fields = fields }
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
-        if (includeItemTypes.Length == 1
-            && includeItemTypes[0] == BaseItemKind.BoxSet)
-        {
-            parentId = null;
-        }
-
         var item = _libraryManager.GetParentItem(parentId, userId);
         QueryResult<BaseItem> result;
 
+        if (includeItemTypes.Length == 1
+            && includeItemTypes[0] == BaseItemKind.BoxSet
+            && item is not BoxSet)
+        {
+            parentId = null;
+            item = _libraryManager.GetUserRootFolder();
+        }
+
         if (item is not Folder folder)
         {
             folder = _libraryManager.GetUserRootFolder();