On my Air 2 when playing videos in the Youtube app I noticed the video will start out playing fine and then get somewhat blurry for a couple of seconds and then correct itself. It's acting as if it doesn't have enough bandwidth to play the video properly. This has been going on for a couple of weeks. In trouble shooting I did a speedtest on my network. I'm show 60Mbs down like normal. On the Air 2 I switched into the chrome browser and safari and went to youtube and played the same videos. The videos run fine in the different browsers. I then checked my wifes Mini 2 and played the same videos and they play fine on her Mini 2. I also went to my Mac Mini and played various videos and they played fine. I'm running 8.1.1 and have a 64 GB LTE model and the app behaves this way on wifi or cellular signal. So, this looks to be a problem with the youtube app. I wondering if anyone else has been experiencing anything like this? Edit: I forgot to mention that I have over 10GB of free space on this Air 2.