diff --git a/src/sdk/namespace_fs.js b/src/sdk/namespace_fs.js
index d2d221de05..53e12965f7 100644
--- a/src/sdk/namespace_fs.js
+++ b/src/sdk/namespace_fs.js
@@ -1140,9 +1140,7 @@ class NamespaceFS {
             // end the stream
             res.end();
 
-            // in case of transform streams such as ChunkFS there is also a readable part. since we expect write stream
-            // and don't care about the readable part, set readable: false
-            await stream_utils.wait_finished(res, { readable: false, signal: object_sdk.abort_controller.signal });
+            await stream_utils.wait_finished(res, { signal: object_sdk.abort_controller.signal });
             object_sdk.throw_if_aborted();
 
             dbg.log0('NamespaceFS: read_object_stream completed file', file_path, {
@@ -1581,9 +1579,15 @@ class NamespaceFS {
                 large_buf_size: multi_buffer_pool.get_buffers_pool(undefined).buf_size
             });
             chunk_fs.on('error', err1 => dbg.error('namespace_fs._upload_stream: error occured on stream ChunkFS: ', err1));
+            chunk_fs.on('finish', arg => dbg.error('namespace_fs._upload_stream: finish occured on stream ChunkFS: ', arg));
+            chunk_fs.on('close', arg => dbg.error('namespace_fs._upload_stream: close occured on stream ChunkFS: ', arg));
             if (copy_source) {
+                // ChunkFS is a Transform stream, however read_object_stream expects a write stream. call resume to close the read part
+                // we need to close both read and write parts for Transform stream to properly close and release resorces
+                chunk_fs.resume();
                 await this.read_object_stream(copy_source, object_sdk, chunk_fs);
             } else if (params.source_params) {
+                chunk_fs.resume();
                 await params.source_ns.read_object_stream(params.source_params, object_sdk, chunk_fs);
             } else {
                 await stream_utils.pipeline([source_stream, chunk_fs]);
diff --git a/src/test/unit_tests/test_bucketspace_versioning.js b/src/test/unit_tests/test_bucketspace_versioning.js
index 842ce68e32..db0491ba1f 100644
--- a/src/test/unit_tests/test_bucketspace_versioning.js
+++ b/src/test/unit_tests/test_bucketspace_versioning.js
@@ -773,6 +773,16 @@ mocha.describe('bucketspace namespace_fs - versioning', function() {
             assert.ok(exist2);
         });
 
+        mocha.it('copy object version id - version matches mtime and inode', async function() {
+            const key = 'copied_key5.txt';
+            const res = await s3_uid6.copyObject({ Bucket: bucket_name, Key: key,
+                CopySource: `${bucket_name}/${key1}?versionId=${key1_ver1}`});
+            const obj_path = path.join(full_path, key);
+            const stat = await nb_native().fs.stat(DEFAULT_FS_CONFIG, obj_path);
+            const expcted_version = 'mtime-' + stat.mtimeNsBigint.toString(36) + '-ino-' + stat.ino.toString(36);
+            assert.equal(expcted_version, res.VersionId);
+        });
+
         mocha.it('delete object - versioning enabled - nested key (more than 1 level)- delete partial directory', async function() {
             const parital_nested_directory = dir_path_complete.slice(0, -1); // the directory without the last slash
             const folder_path_nested = path.join(nested_keys_full_path, dir_path_complete, NSFS_FOLDER_OBJECT_NAME);