diff --git a/Duplicati/Library/Backend/Idrivee2/Idrivee2Backend.cs b/Duplicati/Library/Backend/Idrivee2/Idrivee2Backend.cs
index db797a927..66d27e56b 100644
--- a/Duplicati/Library/Backend/Idrivee2/Idrivee2Backend.cs
+++ b/Duplicati/Library/Backend/Idrivee2/Idrivee2Backend.cs
@@ -236,7 +236,13 @@ namespace Duplicati.Library.Backend
 
         /// <inheritdoc/>
         public IAsyncEnumerable<IFileEntry> ListAsync(string path, CancellationToken cancellationToken)
-            => m_s3Client.ListBucketAsync(m_bucket, path, false, cancellationToken);
+        {
+            var filterPath = GetFullKey(path);
+            if (!string.IsNullOrWhiteSpace(filterPath))
+                filterPath = Util.AppendDirSeparator(filterPath, "/");
+
+            return m_s3Client.ListBucketAsync(m_bucket, filterPath, true, cancellationToken);
+        }
 
 
         /// <inheritdoc/>
diff --git a/Duplicati/Library/Backend/S3/S3Backend.cs b/Duplicati/Library/Backend/S3/S3Backend.cs
index 2136eedbc..91877df04 100644
--- a/Duplicati/Library/Backend/S3/S3Backend.cs
+++ b/Duplicati/Library/Backend/S3/S3Backend.cs
@@ -410,13 +410,9 @@ namespace Duplicati.Library.Backend
         /// <inheritdoc/>
         public IAsyncEnumerable<IFileEntry> ListAsync(string path, CancellationToken cancellationToken)
         {
-            var prefix = m_prefix;
-            if (!string.IsNullOrWhiteSpace(prefix))
-                prefix = Util.AppendDirSeparator(prefix);
-
-            var filterPath = prefix + path;
+            var filterPath = GetFullKey(path);
             if (!string.IsNullOrWhiteSpace(filterPath))
-                filterPath = Util.AppendDirSeparator(filterPath);
+                filterPath = Util.AppendDirSeparator(filterPath, "/");
 
             return s3Client.ListBucketAsync(m_bucket, filterPath, m_recurseLists, cancellationToken);
         }
diff --git a/Duplicati/Library/SourceProvider/Builtin/BackendSourceFileEntry.cs b/Duplicati/Library/SourceProvider/Builtin/BackendSourceFileEntry.cs
index 95fe59f91..93bea7d8c 100644
--- a/Duplicati/Library/SourceProvider/Builtin/BackendSourceFileEntry.cs
+++ b/Duplicati/Library/SourceProvider/Builtin/BackendSourceFileEntry.cs
@@ -96,7 +96,7 @@ public class BackendSourceFileEntry(BackendSourceProvider parent, string path, b
         if (!isFolder)
             throw new InvalidOperationException("Enumerate can only be called on folders");
 
-        return parent.WrappedBackend.ListAsync(path, cancellationToken)
+        return parent.WrappedBackend.ListAsync(NormalizePathTo(path, '/'), cancellationToken)
             // Remove the current and parent folder entries
             .Where(x => !string.IsNullOrWhiteSpace(x.Name) && x.Name != "." && x.Name != "..")
             // Remove sub-folder entries