Why can't download notebooks as .ipynb

Why I am not being able to download the exercises notebook in .ipynb format anymore?
When I try to, the file I get is a .json or html (when I try .py files).
What is going on?

It also happened in course 2.


That’s now it works now.
You can re-name the json file to ipynb after you download it.

Alrighty. Renaming worked fine. Thanks.

Here’s how you can download: How to Download Your Notebook(s)