Hmm, how many subscriptions do you have? If it's a really large number that may cause issues with the display of the sub button. We're also currently working to improve this. Rest assured that notifications and subs feed updates are not impacted by this issue.
@TeamYouTube I have noticed that most of the channels I am subscribed it saying subscribe when I already subbed to the channel
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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