Jellyfin.Server.Implementations/Item/ItemPersistenceService.cs

@@ -257,14 +257,14 @@ public class ItemPersistenceService : IItemPersistenceService
         using var transaction = context.Database.BeginTransaction();
 
         var ids = tuples.Select(f => f.Item.Id).ToArray();
-        var existingItems = context.BaseItems.Where(e => ids.Contains(e.Id)).Select(f => f.Id).ToArray();
+        var existingItems = context.BaseItems.Where(e => ids.Contains(e.Id)).Select(f => f.Id).ToHashSet();
 
         foreach (var item in tuples)
         {
             var entity = BaseItemMapper.Map(item.Item, _appHost);
             entity.TopParentId = item.TopParent?.Id;
 
-            if (!existingItems.Any(e => e == entity.Id))
+            if (!existingItems.Contains(entity.Id))
             {
                 context.BaseItems.Add(entity);
             }