'ytcfg is not defined' error occured since a weeks ago

[utylee]

First, thank you for your great work.
I have used ytstudio module about a month and it operates very well until a week ago. But since a week ago 'ytcfg is not defined' error is occurring whenever 'await yt.login()' calls.

To solve the problem, I erased all the cookies and re-login in studio.youtube.com on browser several times, and correct the
new cookies data and printed all cookies data in ytstudio's Studio class to confirm if cookies is correct or not

Cookie datas in login.json was correct (include SESSION_TOKEN too (from developer mode /grst ) but looks like it can't read the site's script and 'ytcfg' object.
Is studio.youtube.com changed recently , or Am I missing something?

[ in my_program.py ]

...
await yt.login()
...

[ in module ytstudio/init.py ]
...
async def login(self) -> bool:
....
self.js.execute(f"{script} window.ytcfg = ytcfg;")

==>

File "/home/utylee/.virtualenvs/misc/lib/python3.8/site-packages/ytstudio/init.py", line 68, in login
self.js.execute(
js2py.internals.simplex.JsException: ReferenceError: ytcfg is not defined

[infopcgood]

Same problem here.

[Anyquach90]

@utylee Have you fixed this error yet? Can you share it with me?