Video author 'unknown' when unsing use_oauth=True

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Describe the bug When unsing the use_oauth=True function, the author alsways is 'unknown'.

code that was used that resulted in the bug

from pytubefix import YouTube

video = YouTube(url,
                use_oauth=True,
                allow_oauth_cache=True)

print(video.author)

Expected behavior For example, the author should be 'Metallica' and not 'unknown'.

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

Additional context

JuanBindez / pytubefix