We'd like to help. Have you tried uninstalling the app, restart the device and reinstall the app to check if that resolves the issue? Also, do you see this across devices? Keep us posted.
Oh lovely didn’t know I could have a -1 amount of likes on a video 

@TeamYouTube @YouTubepic.twitter.com/YfA8u9eIod
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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