Unable to view files in the folder

I have recently installed jupyter and the bug I am facing that when I open a folder in the terminal and when jupyter opens, it is showing me the folders in the directory but the files in those folders are not being displayes and show that the folder is empty although opening the folder there files ipynb do exist.

For example,

I open Python-Data-Science-and-Machine-Learning-Bootcamp through the terminal in the jupyter and in it there are

Deep Learning
...

which have .ipynb files but opening the folder in jupyter shows the folder is empty

Reproduce the problem by launching Jupyter from a terminal, opening a nested folder, and checking whether its .ipynb files appear. The report names no source files or tests; done means the existing notebook files are displayed instead of the folder appearing empty.

Written by the indexing model from the issue text.