Couple of updates back youtube app started doing this when I try to load my video list .it's only there it does it for some reason. Starting to be a bother when uploading as I have to repeatedly tap retry. Sadly this is not the first time, sometime last year it did the same thing for a while.
Another thing is it seems to hide comments at random and they show up ours or a day later. That is just super annoying. That is on the studio app of course. But ya know it's free sort of.
I notice on music videos now and then it runs 2 ads before playing the video. Not always but I've run into it several times now. I'm sure this is a ploy to get you to sign up and pay for Red.
That being said I have given thought to subscribing to Google music for $9.99 a month as I listen to a great deal of music and hell, if you but 1 album it's often at least that in a month. This way you get to listen to a great deal of music and don't need to buy the album to do so. But still thinking about it. 10 bucks is 10 bucks.