Describe the bug

Steps to Reproduce

1. Create a Python Application.
2. Install "IPython" and "ipykernel" package on Python3.9 environment.
3. Open "Python Environments" window->"Overview" page to enable "Use Ipython interactive mode".
4. Open interactive window to typeprint("hello")

Expected behavior

It should switch to IPython interactive mode.

Additional context and screenshots

The interactive window was hung.

After restarting VS, I got this. And I typedprint("hello"), it was still hung.