yt-dlp: The --cookies-from-browser command results in `WARNING: failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?`

Checklist

• I’m reporting a bug unrelated to a specific site
• I’ve verified that I’m running yt-dlp version 2021.09.02
• I’ve checked that all provided URLs are alive and playable in a browser
• The provided URLs do not contain any DRM to the best of my knowledge
• I’ve checked that all URLs and arguments with special characters are properly quoted or escaped
• I’ve searched the bugtracker for similar bug reports including closed ones
• I’ve read bugs section in FAQ

Verbose log

Side Note: The WARNING: failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong? message pops up SEVERAL times. I only put the first two lines with that message and put […] in place of all the other ones.

Admins-MacBook-Pro:~ Victoria$ yt-dlp --print "%(playlist_index)s %(original_url)s %(title)s - %(uploader)s [%(duration_string)s]" --flat-playlist "https://www.youtube.com/playlist?list=WL" --cookies-from-browser chrome:Default --verbose
[debug] Command-line config: ['--print', '%(playlist_index)s %(original_url)s %(title)s - %(uploader)s [%(duration_string)s]', '--flat-playlist', 'https://www.youtube.com/playlist?list=WL', '--cookies-from-browser', 'chrome:Default', '--verbose']
[Cookies] Extracting cookies from chrome
[debug] extracting from: "/Users/Victoria/Library/Application Support/Google/Chrome/Default/Cookies"
WARNING: failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?
WARNING: failed to decrypt cookie because UTF-8 decoding failed. Possibly the key is wrong?
[...]
[Cookies] Extracted 4753 cookies from chrome (1261 could not be decrypted)
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] yt-dlp version 2021.09.02 
[debug] Python version 3.9.6 (CPython 64bit) - macOS-10.14.6-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.4, ffprobe 4.4
[debug] Optional libraries: mutagen, pycryptodome, sqlite, websockets
[debug] Proxy map: {}
[debug] [youtube:tab] Extracting URL: https://www.youtube.com/playlist?list=WL
[youtube:tab] WL: Downloading webpage
ERROR: [youtube:tab] WL: YouTube said: The playlist does not exist.
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/common.py", line 584, in extract
    ie_result = self._real_extract(url)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4187, in _real_extract
    info_dict = self.__real_extract(url, smuggled_data)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4255, in __real_extract
    webpage, data = self._extract_webpage(url, item_id)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4171, in _extract_webpage
    self._extract_and_report_alerts(data)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 738, in _extract_and_report_alerts
    return self._report_alerts(self._extract_alerts(data), *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 735, in _report_alerts
    raise ExtractorError('YouTube said: %s' % errors[-1][1], expected=expected)
yt_dlp.utils.ExtractorError: YouTube said: The playlist does not exist.
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/common.py", line 584, in extract
    ie_result = self._real_extract(url)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4187, in _real_extract
    info_dict = self.__real_extract(url, smuggled_data)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4255, in __real_extract
    webpage, data = self._extract_webpage(url, item_id)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 4171, in _extract_webpage
    self._extract_and_report_alerts(data)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 738, in _extract_and_report_alerts
    return self._report_alerts(self._extract_alerts(data), *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/youtube.py", line 735, in _report_alerts
    raise ExtractorError('YouTube said: %s' % errors[-1][1], expected=expected)
yt_dlp.utils.ExtractorError: YouTube said: The playlist does not exist.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1214, in wrapper
    return func(self, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1239, in __extract_info
    ie_result = ie.extract(url)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/yt_dlp/extractor/common.py", line 600, in extract
    raise ExtractorError(
yt_dlp.utils.ExtractorError: [youtube:tab] WL: YouTube said: The playlist does not exist.

Description

I’m using yt-dlp on my Mac this time around. I wanted to try out the new --cookies-from-browser command, but I kept getting that error for both my Watch Later playlist and another privated playlist. Yt-dlp has been downloaded through Python 3.9.6. I have pip 21.2.4.

$ pip --version
pip 21.2.4 from /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pip (python 3.9)

I’ve checked if Default is the name of my profile. Looking at the folder, I see the profile picture I use for it, so I must’ve gotten the right path, at least.

I know I could just extract my cookies, but like I said, I wanted to see how the new command would work. Besides, I thought it might be good to at least report this issue.

Thanks in advance!