Reg->6.4.3: Crashing without error reporting in Qt-based threads starting from PySide6 v6.4.3

Steps to reproduce

 pip install openai

• Run pyside2310.py
• Enter text, press <Enter>
• Actual: crash after a while
• Expected: Exeption openai.error.AuthenticationError is immediately reported on stderr

I got it this problem with all my projects that uses QThreadPool and QRunnable objects, when an exception raises inside a QRunnable, the app stops responding for a while and then it crashes with no error trackback, and I just get "Process finished with exit code -1073741819 (0xC0000005)".

And this happens even in a normal terminal without an IDE, and it turns out that this problem totally goes away when I downgraded to PySide6 v6.4.2, I included a sample that suffers from this problem, open it and write anything in the box and hit enter.

Inside "ChatGPTGUI" class, in "eventFilter" function and  in "thread" function, the line:-

completion = openai.ChatCompletion.create(model="gpt-3.5-turbo", messages=self.chatgpt_buffer)

Will raise an exception because the API key is wrong, in PySide6 v6.4.3 or higher, the app will crash as I mentioned, but in version PySide6 v6.4.2, it will report the exception normally in the terminal without crashing.

Also I noticed a big speed boost all functions that was called with QRunnables when I downgraded to PySide6 v6.4.2 in my projects, this issue is critical and it's not easy to notice unless someone was missing with old versions, specially the speed problem, I noticed it by luck.

In the file I included, the problem is visible here but it can be caught if the app got launched in a debugger, I have other more extreme cause where even the debugger can't catch the errors, but it a very big project and I can't imagine how I will minimize it yet, but I wish this sample I uploaded is sufficient to track down the problem.