Add EnableRetryOnFailure to handle transient connection failures (57P01 terminating connection)

MediaBrowser.Controller/Providers/DirectoryService.cs

@@ -7,6 +7,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using MediaBrowser.Model.IO;
 
@@ -30,7 +31,22 @@ namespace MediaBrowser.Controller.Providers
 
         public FileSystemMetadata[] GetFileSystemEntries(string path)
         {
-            return _cache.GetOrAdd(path, static (p, fileSystem) => fileSystem.GetFileSystemEntries(p).ToArray(), _fileSystem);
+            if (_cache.TryGetValue(path, out var result))
+            {
+                return result;
+            }
+
+            try
+            {
+                result = _fileSystem.GetFileSystemEntries(path).ToArray();
+                _cache.TryAdd(path, result);
+                return result;
+            }
+            catch (DirectoryNotFoundException)
+            {
+                // A folder may be deleted between scans; treat it as empty so refresh logic can continue.
+                return Array.Empty<FileSystemMetadata>();
+            }
         }
 
         public List<FileSystemMetadata> GetDirectories(string path)