From ce64dbc034b2176d863fb598cf7079aa6a1fce55 Mon Sep 17 00:00:00 2001
From: sinterdev <189787597+sinterdev@users.noreply.github.com>
Date: Thu, 30 Jan 2025 20:43:37 -0500
Subject: [PATCH] Removing CollectionFolders from cache when they are deleted
 on disk. (#13315)

---
 .../Library/LibraryManager.cs                        | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index 9cc5d09e94..eb045e35e3 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -1049,9 +1049,17 @@ namespace Emby.Server.Implementations.Library
                 cancellationToken: cancellationToken).ConfigureAwait(false);
 
             // Quickly scan CollectionFolders for changes
-            foreach (var folder in GetUserRootFolder().Children.OfType<Folder>())
+            foreach (var child in GetUserRootFolder().Children.OfType<Folder>())
             {
-                await folder.RefreshMetadata(cancellationToken).ConfigureAwait(false);
+                // If the user has somehow deleted the collection directory, remove the metadata from the database.
+                if (child is CollectionFolder collectionFolder && !Directory.Exists(collectionFolder.Path))
+                {
+                    _itemRepository.DeleteItem(collectionFolder.Id);
+                }
+                else
+                {
+                    await child.RefreshMetadata(cancellationToken).ConfigureAwait(false);
+                }
             }
         }