error on WB UI with automation script on customer Production Staging environment

### 🔍 Before submitting the issue

- [x] I have searched among the existing issues
- [x] I am using a Python virtual environment

### 🐞 Description of the bug

Reference bug ticket

> In Post Process panel when clicking the automation button then WB was launching. After launching the UI then the WB displayed the error dialog.
>
> Image
> The dialog message is the blow in English:
> English (Translated by Google)
> An error occurred during shutdown. Please use the [Show Details] button to view technical details about the error.
> Do you want to shut down? Some files or processes may not close properly.
> Japanese
> 終了中に問題が発生しました。エラーの技術的な詳細を参照するには[詳細を表示]ボタンを使用してください
> 終了しますか？いくつかのファイルまたはプロセスが正常に終了しない場合があります。

### 📝 Steps to reproduce

It is reproducible in customer production environment, not observed in any other environment.

### 💻 Which operating system are you using?

Windows

### 📀 Which ANSYS version are you using?

Ansys 25R2

### 🐍 Which Python version are you using?

3.12

### 📦 Installed packages

```shell
windows
```

Start by reproducing the automation-button flow from the Post Process panel in the customer Production Staging environment on Windows with Ansys 25R2 and Python 3.12. Capture the shutdown dialog's technical details and compare the behavior with other environments; done means identifying and fixing the environment-specific error and verifying that Workbench launches and shuts down normally.

Written by the indexing model from the issue text.