diff --git a/__init__.py b/__init__.py
index 334d799..64d6ac1 100644
--- a/__init__.py
+++ b/__init__.py
@@ -20,7 +20,7 @@ import nodes
 import torch
 
 
-version = [1, 13, 5]
+version = [1, 13, 6]
 version_str = f"V{version[0]}.{version[1]}" + (f'.{version[2]}' if len(version) > 2 else '')
 print(f"### Loading: ComfyUI-Manager ({version_str})")
 
@@ -316,6 +316,12 @@ def __win_check_git_update(path, do_fetch=False, do_update=False):
         except Exception as e:
             print(f'[ComfyUI-Manager] failed to fixing')
 
+        if 'detected dubious' in output:
+            print(f'\n[ComfyUI-Manager] Failed to fixing repository setup. Please execute this command on cmd: \n'
+                  f'-----------------------------------------------------------------------------------------\n'
+                  f'git config --global --add safe.directory "{path}"\n'
+                  f'-----------------------------------------------------------------------------------------\n')
+
     if do_update:
         if "CUSTOM NODE PULL: True" in output:
             process.wait()
@@ -1482,7 +1488,13 @@ async def update_comfyui(request):
             if 'detected dubious' in e:
                 print(f"[ComfyUI-Manager] Try fixing 'dubious repository' error on 'ComfyUI' repository")
                 subprocess.run(['git', 'config', '--global', '--add', 'safe.directory', comfy_path])
-                remote.fetch()
+                try:
+                    remote.fetch()
+                except Exception:
+                    print(f"\n[ComfyUI-Manager] Failed to fixing repository setup. Please execute this command on cmd: \n"
+                          f"-----------------------------------------------------------------------------------------\n"
+                          f'git config --global --add safe.directory "{comfy_path}"\n'
+                          f"-----------------------------------------------------------------------------------------\n")
 
         commit_hash = repo.head.commit.hexsha
         remote_commit_hash = repo.refs[f'{remote_name}/{branch_name}'].object.hexsha
diff --git a/prestartup_script.py b/prestartup_script.py
index a227ff6..721cf85 100644
--- a/prestartup_script.py
+++ b/prestartup_script.py
@@ -32,6 +32,8 @@ startup_script_path = os.path.join(comfyui_manager_path, "startup-scripts")
 restore_snapshot_path = os.path.join(startup_script_path, "restore-snapshot.json")
 git_script_path = os.path.join(comfyui_manager_path, "git_helper.py")
 
+std_log_lock = threading.Lock()
+
 
 class TerminalHook:
     def __init__(self):
@@ -184,25 +186,27 @@ try:
                 log_file.write(message)
                 log_file.flush()
 
-            if self.is_stdout:
-                original_stdout.write(message)
-                original_stdout.flush()
-                terminal_hook.write_stderr(message)
-            else:
-                original_stderr.write(message)
-                original_stderr.flush()
-                terminal_hook.write_stdout(message)
+            with std_log_lock:
+                if self.is_stdout:
+                    original_stdout.write(message)
+                    original_stdout.flush()
+                    terminal_hook.write_stderr(message)
+                else:
+                    original_stderr.write(message)
+                    original_stderr.flush()
+                    terminal_hook.write_stdout(message)
 
         def flush(self):
             log_file.flush()
-            if self.is_stdout:
-                original_stdout.flush()
-            else:
-                original_stderr.flush()
+
+            with std_log_lock:
+                if self.is_stdout:
+                    original_stdout.flush()
+                else:
+                    original_stderr.flush()
 
         def close(self):
             self.flush()
-            pass
 
         def reconfigure(self, *args, **kwargs):
             pass