@YouTubeBrasil hi, YouTube is unsubscribing from all channels and when I subscribe again the subscription is unsubscribed as soon as you leave the video. I'm also not able to save the videos to watch later could you help me?
Hmm did you recently subscribe to the channel? If the sub button isn't showing "subscribed" try refreshing the page (sometimes there's a short delay). About adding videos on the ""watch later"" playlist, have you tried doing this on other devices? Keep us posted!