Happens to me constantly on the P6P. Rebooting phone fixes it. Absolutely hate this bug

You can import YouTube subscriptions by clicking on the Sources tab and then tapping on the YouTube source (says tap to open in small print). You can then sign in and after that you’ll have import subscriptions as well as import playlists buttons.

First comment I’ve seen that mentioned 1Password. Surprise to see it so far down the list